Acquisition method (AMC)
1
FSC 5305 × SCREW,CAP,HEXAGON HEAD
SCREW,CAP,HEXAGON HEAD
5305-01-256-4457 FSC 5305
NSN 5305-01-256-4457 (also written 5305012564457; NIIN 01-256-4457) is a screw, cap, hexagon head in Federal Supply Class 5305, Screws. 6 manufacturer part numbers from 6 suppliers are on record. It was last purchased in Oct 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)
R
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. 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 0.484 AND INCHES MAXIMUM 0.563 |
| FASTENER LENGTH AASB | INCHES MINIMUM 10.828 AND INCHES MAXIMUM 10.875 |
| HEAD STYLE AASK | — |
| HEAD HEIGHT AASU | INCHES NOMINAL 0.250 |
| WIDTH BETWEEN FLATS AATB | INCHES NOMINAL 0.750 |
| NOMINAL THREAD DIAMETER AHYM | INCHES 0.500 |
| THREAD QUANTITY PER INCH CMLP | 20 |
| MINIMUM TENSILE STRENGTH CQBC | POUNDS PER SQUARE INCH 150000 |
| HARDNESS RATING CQFM | OVERALL ROCKWELL C MINIMUM 32.0 AND ROCKWELL C MAXIMUM 36.0 |
| MATERIAL MATT | OVERALL STEEL COMP E4340 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-5000 |
| SURFACE TREATMENT SFTT | OVERALL CADMIUM AND CHROMATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416 TY 2 CL 3 QQ--416 |
| 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 |
|---|---|---|
| 050F1100E4340 | 0PL77 | RAINBOW FASTENER INC. |
| 52-B-1070-1 | 03111 | BLISS E W CO GULF AND WESTERN MFG CO SUB OF GULF AND WESTERN INDUSTRIES |
| 52-B-1070-1 | 06GF2 | R & R INDUSTRIES LTD INC |
| 52-B-1070-1 | 21439 | CURTISS-WRIGHT FLOW CONTROL SERVICE, LLC DBA ENGINEERED ARRESTING SYSTEMS - ESCO DIV CW FLOW CONTROL SVC LLC DBA |
| 52B1070-1 | Z0K15 | DEFENCE LIAISON SERVICES PTY LTD |
| 5305PL0698674 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
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
$63.98
Purchases
1
Total spend
$172,426
Oct 15, 2026
Last purchased
2 · 2.0/yr
Purchase records
$344,852
Total demand
$63.98
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | 2,695 | $63.98 | $172,426 | KAMPI COMPONENTS CO INC (7Z016) | 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 |
|---|---|---|---|---|
| Oct 15, 2026 | SPE4A627P2188 ↗ | KAMPI COMPONENTS CO INC | — | $172,426 |
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
KAMPI COMPONENTS CO INC
last award Oct 2026
BLISS E W CO GULF AND WESTERN MFG CO SUB OF GULF AND WESTERN INDUSTRIES
no award yet
no awards on record
Listed source CURTISS-WRIGHT FLOW CONTROL SERVICE, LLC DBA ENGINEERED ARRESTING SYSTEMS - ESCO DIV CW FLOW CONTROL SVC LLC DBA
no award yet
no awards on record
Listed source DEFENCE LIAISON SERVICES PTY LTD
no award yet
no awards on record
Listed source JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX
no award yet
no awards on record
Listed source R & R INDUSTRIES LTD INC
no award yet
no awards on record
Listed source RAINBOW FASTENER INC.
no award yet
no awards on record
Listed source KAMPI COMPONENTS CO INC won the only award on record. KAMPI COMPONENTS CO INC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-31AL | Sep 17, 2026 | Sep 24, 2026 | 2,695 | 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: 2026-10-16.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SCREW,CAP,HEXAGON HEAD." nsnexplorer.com, https://nsnexplorer.com/nsn/5305-01-256-4457/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5305-01-256-4457/