Acquisition method (AMC)
3
FSC 5305 × SCREW,CLOSE TOLERANCE
SCREW,CLOSE TOLERANCE
5305-01-051-0637 FSC 5305
NSN 5305-01-051-0637 (also written 5305010510637; NIIN 01-051-0637) is a screw, close tolerance in Federal Supply Class 5305, Screws. 1 manufacturer part number from 1 supplier is 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 to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
B
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, 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 | 3A |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| THREAD LENGTH AASA | INCHES MINIMUM 0.400 AND INCHES MAXIMUM 0.450 |
| FASTENER LENGTH AASB | INCHES MINIMUM 1.848 AND INCHES MAXIMUM 1.878 |
| HEAD STYLE AASK | — |
| HEAD DIAMETER AASL | INCHES MINIMUM 0.455 AND INCHES MAXIMUM 0.510 |
| GRIP DIAMETER AAUR | INCHES MINIMUM 0.2490 AND INCHES MAXIMUM 0.2495 |
| INTERNAL DRIVE STYLE ABQZ | — |
| NOMINAL THREAD DIAMETER AHYM | INCHES 0.250 |
| GRIP LENGTH ANEE | INCHES MINIMUM 1.428 AND INCHES MAXIMUM 1.448 |
| THREAD QUANTITY PER INCH CMLP | 28 |
| COUNTERSINK ANGLE CRSQ | DEGREES NOMINAL 100.0 |
| SURFACE FINISH CSYM | GRIP MICROINCHES 32.0 |
| SURFACE FINISH CSYM | THREADS MICROINCHES 32.0 |
| MATERIAL MATT | OVERALL IRON ALLOY 660 |
| SURFACE TREATMENT SFTT | OVERALL PASSIVATE |
| THREAD SERIES DESIGNATOR THSD | UNIFIED NATIONAL JOINT FINE (UNJF) |
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 |
|---|---|---|
| BACB30LR4U23 | 81205 | THE BOEING COMPANY DIV DEFENSE |
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 28, 2026
Last purchased
1 · 1.0/yr
Purchase records
$2,031
Total demand
$2,031
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 28, 2026 | SPE4A626PBBBH ↗ | — | — | $2,031 |
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
CAGE 170H9
last award Sep 2026
THE BOEING COMPANY DIV DEFENSE
no award yet
no awards on record
Listed source CAGE 170H9 won the only award on record. CAGE 170H9 won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-11SZ | Aug 5, 2026 | Aug 17, 2026 | 380 | 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.
- Data last refreshed: 2026-09-29.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SCREW,CLOSE TOLERANCE." nsnexplorer.com, https://nsnexplorer.com/nsn/5305-01-051-0637/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5305-01-051-0637/