The Bolt,welding, cataloged under National Stock Number 5306-00-044-5319, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-044-5319 |
| Primary Part Number | 8712073 |
| Item Name | Bolt,welding |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Extended Washer Thickness | 0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN |
| Head Height | 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN |
| Fastener Length | 0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.580 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.491 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Welding Projection Quantity | 2 BEARING SURFACE OF HEAD |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1330H OR STEEL COMP 4037H OR STEEL COMP 4130H OR STEEL COMP 5130H OR STEEL COMP 8630H OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 8712073 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5306000445319 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5306-00-044-5319 is a Bolt,welding, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-044-5319 has 1 manufacturer part number on file: 8712073 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8712073: Extended Washer Thickness: 0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN; Head Height: 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN; Fastener Length: 0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN; Extended Washer Diameter: 0.580 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN. 12 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.