Acquisition method (AMC)
1
FSC 5305 × SCREW,CLOSE TOLERANCE
SCREW,CLOSE TOLERANCE
5305-01-284-1391 FSC 5305
NSN 5305-01-284-1391 (also written 5305012841391; NIIN 01-284-1391) is a screw, close tolerance in Federal Supply Class 5305, Screws. 13 manufacturer part numbers from 9 suppliers are 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 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 0.345 AND INCHES MAXIMUM 0.395 |
| FASTENER LENGTH AASB | INCHES MINIMUM 0.793 AND INCHES MAXIMUM 0.823 |
| HEAD STYLE AASK | — |
| HEAD DIAMETER AASL | INCHES MINIMUM 0.447 AND INCHES MAXIMUM 0.507 |
| GRIP DIAMETER AAUR | INCHES MINIMUM 0.2485 AND INCHES MAXIMUM 0.2495 |
| INTERNAL DRIVE STYLE ABQZ | — |
| NOMINAL THREAD DIAMETER AHYM | INCHES 0.250 |
| GRIP LENGTH ANEE | INCHES MINIMUM 0.428 AND INCHES MAXIMUM 0.448 |
| THREAD QUANTITY PER INCH CMLP | 28 |
| MINIMUM TENSILE STRENGTH CQBC | POUNDS PER SQUARE INCH 220000 |
| HARDNESS RATING CQFM | OVERALL ROCKWELL C MINIMUM 46.0 AND ROCKWELL C MAXIMUM 49.0 |
| COUNTERSINK ANGLE CRSQ | DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0 |
| SURFACE FINISH CSYM | BEARING SURFACE OF HEAD MICROINCHES 32.0 |
| SURFACE FINISH CSYM | THREADS MICROINCHES 32.0 |
| SURFACE FINISH CSYM | GRIP MICROINCHES 32.0 |
| MATERIAL MATT | OVERALL STEEL COMP H11 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 6487 |
| SURFACE TREATMENT SFTT | OVERALL CADMIUM AND CHROMATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416 TY 2 QQ--416 |
| 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 |
|---|---|---|
| 121557-4-A7P | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| 121557-4-A7P | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA |
| 5305PL0884188 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX |
| AIC984-4-7 | 06725 | SPS TECHNOLOGIES, LLC DBA AIR INDUSTRIES COMPANY DIV AIR INDUSTRIES COMPANY |
| C7984-4-7 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC |
| C7984-4-7 | 27624 | SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS |
| C7984-4-7 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| C7984-4-7 | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA |
| C7984-4-7 | 81755 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY |
| H044-4-7 | 17446 | HUCK INTERNATIONAL, INC |
| PBF1165-4-7 | 27624 | SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS |
| VT1693F4-7 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC |
| VT1693F4-7 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC DIV TORRANCE OPERATIONS |
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
$4.99
Purchases
1
Total spend
$3,802
Sep 24, 2026
Last purchased
2 · 2.0/yr
Purchase records
$7,605
Total demand
$4.99
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 24, 2026 | 762 | $4.99 | $3,802 | 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 |
|---|---|---|---|---|
| Sep 24, 2026 | SPE4A626V390X ↗ | BOEING DISTRIBUTION SERVICES X, INC. | — | $3,802 |
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 Sep 2026
HOWMET GLOBAL FASTENING SYSTEMS INC
no award yet
no awards on record
Listed source HOWMET GLOBAL FASTENING SYSTEMS INC DIV TORRANCE OPERATIONS
no award yet
no awards on record
Listed source HUCK INTERNATIONAL, INC
no award yet
no awards on record
Listed source JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX
no award yet
no awards on record
Listed source LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY
no award yet
no awards on record
Listed source SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS
no award yet
no awards on record
Listed source SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA
no award yet
no awards on record
Listed source BOEING DISTRIBUTION SERVICES X, INC. won the only award on record. BOEING DISTRIBUTION SERVICES X, INC. won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-31AU | Sep 17, 2026 | Sep 24, 2026 | 762 | 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: 2026-10-04.
- Full methodology →
Cite this page
Citation
NSN Explorer. "SCREW,CLOSE TOLERANCE." nsnexplorer.com, https://nsnexplorer.com/nsn/5305-01-284-1391/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5305-01-284-1391/