The Screw,close Tolerance, cataloged under National Stock Number 5305-00-283-7459, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-283-7459 |
| Primary Part Number | BM33024V5-9U |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Head Height | 0.088 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Fastener Length | 1.078 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Thread Length | 0.506 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN |
| Material Document and Classification | NAS621 COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OR AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL V |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.5 DEGREES MINIMUM AND 100.5 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.629 INCHES MINIMUM AND 0.634 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ST3M430V5-9AS | Houston Precision Fasteners I Lp (USA) |
| BM33024V5-9U PRIMARY | Huck International, Inc (USA) |
| ST3M430V5-9AS | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT8137-5-9AS PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| ST3M430V5-9AS | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| WC8137-5-9A | West Coast Aerospace, Inc. (USA) |
| HT271A5-9 PRIMARY | Hi-Shear Corporation (USA) |
| 110179-5-9AS | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| Reference | Meaning |
|---|---|
| ST3M430V5-9AS | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT271A5-9 | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| 110179-5-9AS | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 110179-5-9AS | 3/2 Design control — primary reference U.S. Government activity |
| ST3M430V5-9AS | 5/9 Secondary reference U.S. Government activity |
| BM33024V5-9U | 5/9 Secondary reference U.S. Government activity |
| HT8137-5-9AS | 5/9 Secondary reference U.S. Government activity |
NSN 5305-00-283-7459 is a Screw,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-283-7459 has 8 manufacturer part numbers on file: ST3M430V5-9AS (Houston Precision Fasteners I Lp), BM33024V5-9U (Huck International, Inc), ST3M430V5-9AS (Fastener Innovation Technology, Inc. Dba F I T), HT8137-5-9AS (Howmet Global Fastening Systems Inc), ST3M430V5-9AS (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc) and 3 more.
Key specifications for BM33024V5-9U: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Head Height: 0.088 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Fastener Length: 1.078 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.