Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,ASSEMBLED WASHE
NUT,SELF-LOCKING,ASSEMBLED WASHE
5310-01-124-6631 FSC 5310
NSN 5310-01-124-6631 (also written 5310011246631; NIIN 01-124-6631) is a nut, self-locking, assembled washe in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 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.
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 |
|---|---|
| THREAD CLASS AAJD | 3B |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| LOCKING FEATURE AAUM | PREVAILING TORQUE ALL METAL DESIGN |
| WASHER OUTSIDE DIAMETER AAVX | INCHES MINIMUM 0.574 AND INCHES MAXIMUM 0.640 |
| LUBRICATION ABAJ | DRY FILM LUBRICANT |
| OVERALL HEIGHT ABKW | INCHES MAXIMUM 0.385 |
| NUT STYLE ACTA | — |
| WIDTH ACROSS FLATS ASDB | INCHES NOMINAL 0.312 |
| TEMP RATING AZKQ | FAHRENHEIT MAXIMUM 450.0 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH CMLP | 24 |
| HARDNESS RATING CQFM | ROCKWELL C MAXIMUM 48.0 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.312 |
| MATERIAL MATT | OVERALL STEEL |
| SURFACE TREATMENT SFTT | NUT CADMIUM |
| SURFACE TREATMENT SFTT | WASHER CADMIUM AND CHROMATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | NUT FED SPEC SINGLE TREATMENT RESPONSE QQ--416 QQ--416 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | WASHER FED SPEC SINGLE TREATMENT RESPONSE QQ--416 TYE 2 CLASS 2 QQ--416 |
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 |
|---|---|---|
| MS90415-5 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
| MS90415-5 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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
—
Purchases
0
Total spend
—
Oct 8, 2026
Last purchased
3 · 3.0/yr
Purchase records
$25,563
Total demand
$18,743
Latest award total
Purchase history
No priced purchases on record for this NSN yet.
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 |
|---|---|---|---|---|
| Oct 6, 2026 | SPE4A622D5988/SPE4A627F0350 ↗ | DON INDUSTRIAL GROUP LLC | — | $616.32 |
| Oct 6, 2026 | SPE4A622D5988/SPE4A627F0329 ↗ | DON INDUSTRIAL GROUP LLC | — | $6,204 |
| Oct 8, 2026 | SPE4A622D5988/SPE4A627F0354 ↗ | DON INDUSTRIAL GROUP LLC | — | $18,743 |
Demand history
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
DON INDUSTRIAL GROUP LLC
last award Oct 2026
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 DON INDUSTRIAL GROUP LLC won 3 of the last 3 awards. DON INDUSTRIAL GROUP LLC won without being a listed source.
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: 2026-10-10.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,ASSEMBLED WASHE." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-124-6631/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-124-6631/