Acquisition method (AMC)
1
FSC 5305 × SCREW,CLOSE TOLERANCE
SCREW,CLOSE TOLERANCE
5305-01-538-1828 FSC 5305
NSN 5305-01-538-1828 (also written 5305015381828; NIIN 01-538-1828) is a screw, close tolerance in Federal Supply Class 5305, Screws. 2 manufacturer part numbers from 2 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 | 3A |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| THREAD LENGTH AASA | INCHES MINIMUM 0.380 AND INCHES MAXIMUM 0.447 |
| FASTENER LENGTH AASB | INCHES MINIMUM 0.952 AND INCHES MAXIMUM 0.999 |
| HEAD STYLE AASK | — |
| HEAD DIAMETER AASL | INCHES MINIMUM 0.376 AND INCHES MAXIMUM 0.381 |
| HEAD HEIGHT AASU | INCHES MINIMUM 0.044 AND INCHES MAXIMUM 0.046 |
| GRIP DIAMETER AAUR | INCHES NOMINAL 0.189 |
| INTERNAL DRIVE STYLE ABQZ | — |
| NOMINAL THREAD DIAMETER AHYM | INCHES 0.190 |
| GRIP LENGTH ANEE | INCHES MINIMUM 0.552 AND INCHES MAXIMUM 0.572 |
| THREAD QUANTITY PER INCH CMLP | 32 |
| COUNTERSINK ANGLE CRSQ | DEGREES NOMINAL 100.0 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | SCREW, CLOSE TOLERANCE-ASSEMBLED O-RING |
| SPECIAL FEATURES FEAT | ST3M430 SERIES BOLTS ARE TO BE USED IN FUEL SEALING APPLICATION. TEMP RANGE -70DEG (F) TO +350DEG (F) GRIP AND THREAD HAVE DRY FILM LUBRICANT PER MIL-L-8937 PLUS CETYL ALCOHOL. SIMILIAR TO BUT NOT THE SAME AS NSN 5305-01-231-7413. THE -7413 DOES NOT INCLUDE DRYFILM LUBRICANT. FURNISHED WITH (1) O-RING MIL-L-8937 |
| MATERIAL MATT | OVERALL TITANIUM ALLOY UNS R56400 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE NAS 621 NAS 621 |
| 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 |
|---|---|---|
| 110179-3-9ASM | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA |
| ST3M430V3-9ASM | 76301 | 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
—
—
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-24WS | Aug 31, 2026 | Sep 11, 2026 | 100 | 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. "SCREW,CLOSE TOLERANCE." nsnexplorer.com, https://nsnexplorer.com/nsn/5305-01-538-1828/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5305-01-538-1828/