Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,EXTENDED WASHER
NUT,SELF-LOCKING,EXTENDED WASHER
5310-01-340-5670 FSC 5310
NSN 5310-01-340-5670 (also written 5310013405670; NIIN 01-340-5670) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 10 manufacturer part numbers from 7 suppliers 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)
P
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC P: the government does not own the rights to the data needed for more sources. 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 0.606 |
| LUBRICATION ABAJ | DRY FILM LUBRICANT |
| OVERALL HEIGHT ABKW | INCHES MAXIMUM 0.411 |
| NUT STYLE ACTA | — |
| WASHER THICKNESS ADEM | INCHES MINIMUM 0.095 |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.430 AND INCHES MAXIMUM 0.439 |
| TEMP RATING AZKQ | FAHRENHEIT NOMINAL 450.0 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH CMLP | 24 |
| HARDNESS RATING CQFM | ROCKWELL C MINIMUM 27.0 AND ROCKWELL C MAXIMUM 33.0 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.312 |
| MATERIAL MATT | OVERALL STEEL |
| SURFACE TREATMENT SFTT | OVERALL CADMIUM AND CHROMATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TY1 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 |
|---|---|---|
| EWN22M-5 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| EWN22M-524 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| EWN22M-524 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA |
| HS4442-524 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC |
| HS4442-524 | 8V613 | THE BOEING COMPANY |
| HS4442-524M | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC |
| HS4442-524M | 8V613 | THE BOEING COMPANY |
| RMZ13471-5 | 72962 | HARVARD INDUSTRIES INC |
| VN466A054 | 29372 | HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS |
| VN466A054 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC DIV TORRANCE OPERATIONS |
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 | |
|---|---|---|---|---|---|
| SPE4A6-27-T-1385 | Oct 9, 2026 | Oct 16, 2026 | 3,459 | Cancelled | 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,EXTENDED WASHER." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-340-5670/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-340-5670/