Acquisition method (AMC)
1
FSC 5310 × NUT,PLAIN,CASTELLATED,HEXAGON
NUT,PLAIN,CASTELLATED,HEXAGON
5310-01-185-6231 FSC 5310
NSN 5310-01-185-6231 (also written 5310011856231; NIIN 01-185-6231) is a nut, plain, castellated, hexagon in Federal Supply Class 5310, Nuts and Washers. 5 manufacturer part numbers from 4 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 as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
B
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC B: must be bought from the sources named on a source control or selected item drawing. 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 |
| NUT STYLE ACTA | — |
| NUT HEIGHT ADEA | INCHES MINIMUM 0.536 AND INCHES MAXIMUM 0.556 |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.928 AND INCHES MAXIMUM 0.940 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH CMLP | 18 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.625 |
| HOLE CONFIGURATION STYLE CRHC | — |
| BEARING SURFACE TYPE CRTM | CHAMFERED |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | NUT, CASTELLATED, CONTROL ROD ATTACHMENT-ROTARY WING HEAD |
| MATERIAL MATT | OVERALL IRON ALLOY 660 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5732 OR ASSN STD SINGLE MATERIAL RESPONSE A-S 5731 OR ASSN STD SINGLE MATERIAL RESPONSE A-S 5737 |
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 |
|---|---|---|
| 5310PL1937802 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| 70103-08802-102 | 78286 | SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP |
| 83069-1018 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| AS 208-102 | 84256 | AVIBANK MFG., INC. DBA AVIBANK MANUFACTURING INC |
| AS298-102 | 84256 | AVIBANK MFG., INC. DBA AVIBANK MANUFACTURING INC |
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
—
Sep 17, 2026
Last purchased
1 · 1.0/yr
Purchase records
$44,342
Total demand
$44,342
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 |
|---|---|---|---|---|
| Sep 17, 2026 | SPE4A725D0315/SPE4A726F056Y ↗ | DON INDUSTRIAL GROUP LLC | — | $44,342 |
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
DON INDUSTRIAL GROUP LLC
last award Sep 2026
AVIBANK MFG., INC. DBA AVIBANK MANUFACTURING INC
no award yet
no awards on record
Listed source JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX
no award yet
no awards on record
Listed source SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP
no award yet
no awards on record
Listed source SPS TECHNOLOGIES, LLC DBA PB FASTENERS
no award yet
no awards on record
Listed source DON INDUSTRIAL GROUP LLC won the only award on record. DON INDUSTRIAL GROUP LLC 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 10, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-09-27.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,PLAIN,CASTELLATED,HEXAGON." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-185-6231/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-185-6231/