Acquisition method (AMC)
3
FSC 5310 × NUT,SELF-LOCKING,ROUND
NUT,SELF-LOCKING,ROUND
5310-00-345-3221 FSC 5310
NSN 5310-00-345-3221 (also written 5310003453221; NIIN 00-345-3221) is a nut, self-locking, round in Federal Supply Class 5310, Nuts and Washers. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Nov 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
Q
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC Q: the government lacks adequate data or rights, but breakout to competition is expected. 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 DIRECTION AAJF | RIGHT-HAND |
| SPECIAL FEATURES FEAT | DRIVE POINT 0.062 IN. DIA,0.047 IN. DEEP |
| MATERIAL MATT | OVERALL ALUMINUM ALLOY |
| NOMINAL THREAD SIZE CQJX | INCHES 0.375 |
| THREAD SERIES BZRR | UNF |
| LOCKING FEATURE AAUM | PREVAILING TORQUE ALL METAL DESIGN |
| WIDTH ACROSS FLATS ASDB | INCHES NOMINAL 0.469 |
| NUT THICKNESS ADBG | INCHES NOMINAL 0.219 |
| THREAD QUANTITY PER INCH CMLP | 24 |
| NUT DIAMETER ACTD | INCHES NOMINAL 0.625 |
| NUT STYLE ACTA | — |
| THREAD CLASS AAJD | 2B |
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 |
|---|---|---|
| 95540 | 2N935 | BOEING DISTRIBUTION SERVICES X, INC. |
| 95540 | 70210 | HONEYWELL INTERNATIONAL INC. |
| 95540 | 72599 | ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO |
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
$134.00
Purchases
1
Total spend
$1,742
Nov 4, 2026
Last purchased
2 · 2.0/yr
Purchase records
$3,484
Total demand
$134.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Nov 4, 2026 | 13 | $134.00 | $1,742 | BOEING DISTRIBUTION SERVICES X, INC. (2N935) | Unknown | Source ↗ |
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 |
|---|---|---|---|---|
| Nov 4, 2026 | SPE4A627P3970 ↗ | BOEING DISTRIBUTION SERVICES X, INC. | — | $1,742 |
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.
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
BOEING DISTRIBUTION SERVICES X, INC.
last award Nov 2026
ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO
no award yet
no awards on record
Listed source HONEYWELL INTERNATIONAL INC.
no award yet
no awards on record
Listed source BOEING DISTRIBUTION SERVICES X, INC. won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-27-T-5820 | Oct 23, 2026 | Oct 30, 2026 | 13 | 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 23, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-11-05.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,ROUND." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-00-345-3221/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-00-345-3221/