Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,SINGLE BALL SEA
NUT,SELF-LOCKING,SINGLE BALL SEA
5310-01-342-7253 FSC 5310
NSN 5310-01-342-7253 (also written 5310013427253; NIIN 01-342-7253) is a nut, self-locking, single ball sea in Federal Supply Class 5310, Nuts and Washers. 7 manufacturer part numbers from 6 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)
R
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. 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 |
|---|---|
| THREAD CLASS AAJD | 3B |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| LOCKING FEATURE AAUM | PREVAILING TORQUE ALL METAL DESIGN |
| WASHER OUTSIDE DIAMETER AAVX | INCHES MINIMUM 0.580 AND INCHES MAXIMUM 0.590 |
| LUBRICATION ABAJ | DRY FILM LUBRICANT |
| OVERALL HEIGHT ABKW | INCHES NOMINAL 0.430 |
| BALL SEAT RADIUS ACTC | INCHES NOMINAL 0.313 |
| WASHER THICKNESS ADEM | INCHES MINIMUM 0.135 AND INCHES MAXIMUM 0.145 |
| END ITEM IDENTIFICATION AGAV | B-1B AIRCRAFT |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.367 AND INCHES MAXIMUM 0.376 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH CMLP | 24 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.3125 |
| SPECIAL FEATURES FEAT | WITH MATCHING WASHER |
| MATERIAL MATT | WASHER STEEL COMP 630 |
| MATERIAL MATT | NUT STEEL COMP 305 OR STEEL COMP 304 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | WASHER ASSN STD SINGLE MATERIAL RESPONSE A-S 5643 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | NUT ASSN STD 1ST MATERIAL RESPONSE A-S 5686 OR ASSN STD 2ND MATERIAL RESPONSE A-S 5697 OR ASSN STD 2ND MATERIAL RESPONSE A-S 5639 |
| SURFACE TREATMENT SFTT | OVERALL PASSIVATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--35 QQ--35 |
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 |
|---|---|---|
| BH00629M5M | 27238 | BRISTOL INDUSTRIES, LLC |
| KFN522DL5DL | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC |
| KFN671-5 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC |
| KFN671-5 | 17446 | HUCK INTERNATIONAL, INC |
| KFN671-5 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| LE114-0036-0005 | 43999 | THE BOEING COMPANY DIV LEGACY AM&M |
| MN36-5AW | 73197 | HI-SHEAR CORPORATION |
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 20, 2026
Last purchased
1 · 1.0/yr
Purchase records
$3,500
Total demand
$3,500
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 20, 2026 | SPE4A627P0445 ↗ | — | — | $3,500 |
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
CAGE 1UZU3
last award Oct 2026
BRISTOL INDUSTRIES, LLC
no award yet
no awards on record
Listed source HI-SHEAR CORPORATION
no award yet
no awards on record
Listed source HOWMET GLOBAL FASTENING SYSTEMS INC
no award yet
no awards on record
Listed source HUCK INTERNATIONAL, INC
no award yet
no awards on record
Listed source SPS TECHNOLOGIES, LLC DBA PB FASTENERS
no award yet
no awards on record
Listed source THE BOEING COMPANY DIV LEGACY AM&M
no award yet
no awards on record
Listed source CAGE 1UZU3 won the only award on record. CAGE 1UZU3 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 23, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-21.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,SINGLE BALL SEA." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-342-7253/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-342-7253/