Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,SINGLE BALL SEA
NUT,SELF-LOCKING,SINGLE BALL SEA
5310-01-235-5953 FSC 5310
NSN 5310-01-235-5953 (also written 5310012355953; NIIN 01-235-5953) is a nut, self-locking, single ball sea in Federal Supply Class 5310, Nuts and Washers. 10 manufacturer part numbers from 6 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)
C
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, 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.
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 0.415 |
| LUBRICATION ABAJ | DRY FILM LUBRICANT |
| OVERALL HEIGHT ABKW | INCHES MAXIMUM 0.290 |
| BALL SEAT RADIUS ACTC | INCHES NOMINAL 0.250 |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.305 AND INCHES MAXIMUM 0.313 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH CMLP | 28 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.250 |
| SPECIAL FEATURES FEAT | INCLUDES CONCAVE WASHER |
| MATERIAL MATT | OVERALL STEEL COMP 630 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5643 |
| 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 |
|---|---|---|
| BH00625M4M | 27238 | BRISTOL INDUSTRIES, LLC |
| KFN532DL4 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC |
| KFN532DL4 | 17446 | HUCK INTERNATIONAL, INC |
| KFN532DL4 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| KFN532DL4 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC DIV TORRANCE OPERATIONS |
| LE114-0035-0004 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC |
| LE114-0035-0004 | 17446 | HUCK INTERNATIONAL, INC |
| LE114-0035-0004 | 27238 | BRISTOL INDUSTRIES, LLC |
| LE114-0035-0004 | 43999 | THE BOEING COMPANY DIV LEGACY AM&M |
| LE114-0035-0004 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
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-27HA | Sep 9, 2026 | Sep 16, 2026 | 53 | 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,SINGLE BALL SEA." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-235-5953/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-235-5953/