Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,ASSEMBLED WASHE
NUT,SELF-LOCKING,ASSEMBLED WASHE
5310-00-004-5118 FSC 5310
NSN 5310-00-004-5118 (also written 5310000045118; NIIN 00-004-5118) is a nut, self-locking, assembled washe in Federal Supply Class 5310, Nuts and Washers. 5 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Sep 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
G
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC G: the government has a complete data package and the rights to use it. The codes describe the item's status on record, not any one solicitation. What the codes mean
What it is — can you make it?
Dimensions, the FLIS specification requirements, and the manufacturer part numbers already qualified against this NSN.
Dimensioned drawing
Generated from the federal catalog's dimensional data for this NSN — reference only, not a manufacturing drawing.
Specifications
From the federal catalog (DLA FLIS / PUB LOG) — what your part has to meet. Cited specification documents can be looked up in ASSIST Quick Search ↗, DoD's public spec repository — copy the document number in.
| Requirement | Value |
|---|---|
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | WASHER MIL SPEC SINGLE TREATMENT RESPONSE -IL-C-5541 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | NUT FED SPEC SINGLE TREATMENT RESPONSE QQ--416 TYE 2 CLASS 2 QQ--416 |
| SURFACE TREATMENT SFTT | WASHER CHROMATE |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | WASHER FED SPEC 1ST MATERIAL RESPONSE QQ-A-225 TO 6,T4 OR FED SPEC 2ND MATERIAL RESPONSE QQ-A-250 TO 13,T6 QQ-A-225 |
| SURFACE TREATMENT SFTT | NUT CADMIUM AND CHROMATE |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | NUT ASSN STD 1ST MATERIAL RESPONSE A-S 5024 OR ASSN STD 2ND MATERIAL RESPONSE A-S 5020 OR ASSN STD 3RD MATERIAL RESPONSE A-S 6322 OR ASSN STD 3RD MATERIAL RESPONSE A-S 6323 OR ASSN STD 3RD MATERIAL RESPONSE A-S 6325 OR ASSN STD 3RD MATERIAL RESPONSE A-S 6327 OR ASSN STD 3RD MATERIAL RESPONSE A-S 6358 |
| THREAD CLASS AAJD | 3B |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| LOCKING FEATURE AAUM | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| WASHER OUTSIDE DIAMETER AAVX | INCHES MINIMUM 0.680 AND INCHES MAXIMUM 0.710 |
| COUNTERBORE DIAMETER AAWY | NUT INCHES MINIMUM 0.450 AND INCHES MAXIMUM 0.460 |
| OVERALL HEIGHT ABKW | INCHES MINIMUM 0.442 AND INCHES MAXIMUM 0.482 |
| NUT STYLE ACTA | — |
| NUT COUNTERBORE DEPTH ADFK | NUT INCHES MINIMUM 0.218 AND INCHES MAXIMUM 0.238 |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.553 AND INCHES MAXIMUM 0.564 |
| TEMP RATING AZKQ | FAHRENHEIT MAXIMUM 250.0 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH CMLP | 24 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.375 |
| BEARING SURFACE FINISH CSXL | MICROINCHES 125.0 |
| MATERIAL MATT | LOCKING INSERT PLASTIC NYLON |
| MATERIAL MATT | NUT STEEL COMP 1137 OR STEEL COMP 11L37 OR STEEL COMP 8740 |
| MATERIAL MATT | WASHER ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 |
Manufacturer part numbers
Commercial part numbers cross-referenced to this NSN in the federal catalog — the parts that have been accepted as satisfying this stock number, and who makes them.
| Part number | CAGE | Manufacturer |
|---|---|---|
| F12N7699-624 | 27687 | GREER STOP NUT, INC. |
| MS21224-6 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
| MS21224-6 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MS21224-6 | A0126 | LEONARDO SPA HELICOPTERS DIVISION - PRODUCTION SITE |
| NE8235-6 | 72962 | HARVARD INDUSTRIES INC |
What it pays — so you can quote
The government's own price and demand record for this NSN — what past awards cleared at, so you know where to land your quote.
Latest unit price
$5.25
Purchases
1
Total spend
$15,335
Sep 9, 2026
Last purchased
2 · 2.0/yr
Purchase records
$30,671
Total demand
$5.25
Latest unit price
Purchase history
Related contract actions
Contract action totals, not unit prices — obligation amounts from USAspending for related awards, shown for context only. These do not appear on the price chart above.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Sep 9, 2026 | SPE4A626V359Z ↗ | — | — | $15,335 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 16 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
Buying rhythm
How often does the government buy this item, and how long since the last time? Every solicitation and award on one line.
- Solicitation posted
- Award made
Dot size shows quantity. A faint bar joins a solicitation to the award made against it.
Who wins this item
Does one supplier win this every time, and are the winners on the listed-source list? One dot per award.
- Award in the last 2 years
- Older award
CAGE 9ZU89
last award Sep 2026
GREER STOP NUT, INC.
no award yet
no awards on record
Listed source HARVARD INDUSTRIES INC
no award yet
no awards on record
Listed source LEONARDO SPA HELICOPTERS DIVISION - PRODUCTION SITE
no award yet
no awards on record
Listed source MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
no award yet
no awards on record
Listed source NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
no award yet
no awards on record
Listed source CAGE 9ZU89 won the only award on record. CAGE 9ZU89 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-27-T-0545 | Oct 7, 2026 | Oct 14, 2026 | 2,329 | Expired | View at DIBBS → |
| SPE4A6-26-T-25PU | Sep 2, 2026 | Sep 9, 2026 | 4 | Expired | View at DIBBS → |
| SPE4A6-26-T-24KY | Aug 28, 2026 | Sep 4, 2026 | 2,921 | Expired | View at DIBBS → |
| SPE4A6-26-T-22RQ | Aug 27, 2026 | Sep 3, 2026 | 100 | Expired | View at DIBBS → |
| SPE4A6-26-T-22UC | Aug 27, 2026 | Sep 3, 2026 | 300 | Expired | View at DIBBS → |
| SPE4A6-26-T-22UE | Aug 27, 2026 | Sep 3, 2026 | 25 | Expired | View at DIBBS → |
| SPE4A6-26-T-22XC | Aug 27, 2026 | Sep 3, 2026 | 18 | Expired | View at DIBBS → |
| SPE4A6-26-T-22XE | Aug 27, 2026 | Sep 3, 2026 | 18 | Expired | View at DIBBS → |
| SPE4A6-26-T-22XH | Aug 27, 2026 | Sep 3, 2026 | 12 | Expired | View at DIBBS → |
| SPE4A6-26-T-22XL | Aug 27, 2026 | Sep 3, 2026 | 400 | Expired | View at DIBBS → |
| SPE4A6-26-T-22XM | Aug 27, 2026 | Sep 3, 2026 | 100 | Expired | View at DIBBS → |
| SPE4A6-26-T-22YR | Aug 27, 2026 | Sep 3, 2026 | 4 | Expired | View at DIBBS → |
| SPE4A6-26-T-22YV | Aug 27, 2026 | Sep 3, 2026 | 10 | Expired | View at DIBBS → |
| SPE4A6-26-T-23DK | Aug 27, 2026 | Sep 3, 2026 | 12 | Expired | View at DIBBS → |
| SPE4A6-26-T-23DN | Aug 27, 2026 | Sep 3, 2026 | 100 | Expired | View at DIBBS → |
| SPE4A6-26-T-23DQ | Aug 27, 2026 | Sep 3, 2026 | 17 | Expired | View at DIBBS → |
Open RFQs on DIBBS → DIBBS award history ↗
About this data
- Unit prices: DLA DIBBS award records — every row links to its government record.
- AMSC: latest observed value from DIBBS solicitation history as of Oct 10, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-24.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,ASSEMBLED WASHE." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-00-004-5118/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-00-004-5118/