Acquisition method (AMC)
3
FSC 5310 × NUT,SELF-LOCKING,EXTENDED WASHER
NUT,SELF-LOCKING,EXTENDED WASHER
5310-01-085-8377 FSC 5310
NSN 5310-01-085-8377 (also written 5310010858377; NIIN 01-085-8377) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 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 to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
C
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC C: needs engineering source approval; other sources must qualify first. 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 MAXIMUM 1.875 |
| LUBRICATION ABAJ | SOLUBLE LUBRICANT |
| OVERALL HEIGHT ABKW | INCHES MAXIMUM 1.327 |
| NUT STYLE ACTA | — |
| WASHER THICKNESS ADEM | INCHES MAXIMUM 0.453 |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 1.365 AND INCHES MAXIMUM 1.387 |
| TEMP RATING AZKQ | FAHRENHEIT MAXIMUM 450.0 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH CMLP | 12 |
| NOMINAL THREAD SIZE CQJX | INCHES 1.125 |
| MATERIAL MATT | OVERALL STEEL COMP 8630 OR STEEL COMP 4037 OR STEEL COMP 8740 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD 1ST MATERIAL RESPONSE A-S 6280 OR ASSN STD 2ND MATERIAL RESPONSE A-S 6300 OR ASSN STD 3RD MATERIAL RESPONSE A-S 6320 |
| SURFACE TREATMENT SFTT | OVERALL CADMIUM AND CHROMATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL FED SPEC ALL TREATMENT RESPONSES QQ--416,TY 2,CL 3 QQ--416 |
| SPECIFICATION/STANDARD DATA ZZZK | MANUFACTURERS STANDARD 76301-3-187 |
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 |
|---|---|---|
| 3M187-18 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| 3M187-18 | 76301 | THE BOEING COMPANY DIV DEFENSE |
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
$110.29
Purchases
1
Total spend
$2,206
Sep 1, 2026
Last purchased
2 · 2.0/yr
Purchase records
$4,412
Total demand
$110.29
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 1, 2026 | 20 | $110.29 | $2,206 | WESCO AIRCRAFT HARDWARE CORP. DBA INCORA (1V757) | Unknown | Source ↗ |
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 1, 2026 | SPE4A626P0D45 ↗ | WESCO AIRCRAFT HARDWARE CORP. DBA INCORA | — | $2,206 |
Demand history
Every solicitation we've indexed for this NSN, open and closed — 1 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
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
WESCO AIRCRAFT HARDWARE CORP. DBA INCORA
last award Sep 2026
SPS TECHNOLOGIES, LLC DBA PB FASTENERS
no award yet
no awards on record
Listed source THE BOEING COMPANY DIV DEFENSE
no award yet
no awards on record
Listed source WESCO AIRCRAFT HARDWARE CORP. DBA INCORA won the only award on record. WESCO AIRCRAFT HARDWARE CORP. DBA INCORA won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-16DA | Aug 13, 2026 | Aug 20, 2026 | 20 | 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: 2026-10-26.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,EXTENDED WASHER." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-085-8377/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-085-8377/