Acquisition method (AMC)
1
FSC 5305 × SCREW,CAP,SOCKET HEAD
SCREW,CAP,SOCKET HEAD
5305-01-175-3658 FSC 5305
NSN 5305-01-175-3658 (also written 5305011753658; NIIN 01-175-3658) is a screw, cap, socket head in Federal Supply Class 5305, Screws. 2 manufacturer part numbers from 2 suppliers are on record. The government has 1 open solicitation for it.
Open for bid
1 open solicitation on record right now — quantity, close date, and where to submit.
| Solicitation | Qty | Status | |
|---|---|---|---|
| SPE4A6-27-T-3989 | 573 | Closes in 2d | Bid → |
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 0.477 AND INCHES MAXIMUM 0.636 |
| FASTENER LENGTH AASB | INCHES MINIMUM 0.907 AND INCHES MAXIMUM 0.927 |
| HEAD STYLE AASK | — |
| HEAD DIAMETER AASL | INCHES MINIMUM 0.360 AND INCHES MAXIMUM 0.404 |
| INTERNAL DRIVE STYLE ABQZ | — |
| NOMINAL THREAD DIAMETER AHYM | INCHES 0.250 |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.1562 AND INCHES MAXIMUM 0.1587 |
| THREAD QUANTITY PER INCH CMLP | 28 |
| MINIMUM TENSILE STRENGTH CQBC | POUNDS PER SQUARE INCH 160000 |
| COUNTERSINK ANGLE CRSQ | DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0 |
| SURFACE FINISH CSYM | GRIP MICROINCHES 32.0 |
| SPECIAL FEATURES FEAT | THREE SLOTS 0.040 IN. WIDE BY 0.029 IN. DEEP ALONG LONGITUDINAL AXIS AND 120 DEGREES APART,THREAD TO BE DOUBLE LEAD |
| MATERIAL MATT | OVERALL IRON ALLOY 660 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5737 |
| SURFACE TREATMENT SFTT | OVERALL PASSIVATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--35 QQ--35 |
| THREAD SERIES DESIGNATOR THSD | UNF |
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 |
|---|---|---|
| BACF34L4BS4HS | 81205 | THE BOEING COMPANY DIV DEFENSE |
| CA21189-4-4HS | 29372 | HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS |
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 — 3 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
Buying rhythm
How often does the government buy this item, and how long since the last time? Every solicitation and award on one line.
Dot size shows quantity. A faint bar joins a solicitation to the award made against it.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-27-T-3989 | Oct 14, 2026 | Oct 21, 2026 | 573 | Open | View at DIBBS → |
| SPE4A6-27-T-0521 | Oct 6, 2026 | Oct 13, 2026 | 573 | Cancelled | View at DIBBS → |
| SPE4A6-26-U-4164 | Sep 11, 2026 | Sep 25, 2026 | 1,519 | Cancelled | 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,CAP,SOCKET HEAD." nsnexplorer.com, https://nsnexplorer.com/nsn/5305-01-175-3658/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5305-01-175-3658/