Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,BARREL
NUT,SELF-LOCKING,BARREL
5310-00-900-4381 FSC 5310
NSN 5310-00-900-4381 (also written 5310009004381; NIIN 00-900-4381) is a nut, self-locking, barrel in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.
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 |
|---|---|
| NOMINAL THREAD SIZE CQJX | INCHES 0.250 |
| NUT HEIGHT ADEA | INCHES MAXIMUM 0.406 |
| THREAD QUANTITY PER INCH CMLP | 28 |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| LOCKING FEATURE AAUM | PREVAILING TORQUE ALL METAL DESIGN |
| TEMP RATING AZKQ | FAHRENHEIT NOMINAL 500.0 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| FEATURES PROVIDED CBBL | FLOATING NUT |
| BARREL HEIGHT ADBA | INCHES MINIMUM 0.310 AND INCHES MAXIMUM 0.320 |
| THREAD CLASS AAJD | 3B |
| MATERIAL MATT | OVERALL STEEL |
| NUT STYLE ACTA | — |
| NUT DIAMETER ACTD | INCHES MINIMUM 0.525 AND INCHES MAXIMUM 0.528 |
| NUT LENGTH ACVN | INCHES NOMINAL 0.625 |
| SURFACE TREATMENT SFTT | OVERALL CADMIUM |
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 |
|---|---|---|
| NAS577-4F | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
| NAS577B4F | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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
—
—
Last purchased
—
Purchase records
—
Total demand
—
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.
No related contract actions on record.
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.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-36GN | Sep 25, 2026 | Oct 2, 2026 | 339 | 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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,BARREL." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-00-900-4381/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5310-00-900-4381/