The Bolt,machine, cataloged under National Stock Number 5306-00-281-2856, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Mercer Products & Manufacturing Company Dba Mercer Products & Manufacturing Co Div Mercer Products & Manufacturing. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-281-2856 |
| Primary Part Number | 1294320-105 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Mercer Products & Manufacturing Company Dba Mercer Products & Manufacturing Co Div Mercer Products & Manufacturing |
| Status | ACTIVE |
| Head Height | 0.200 INCHES NOMINAL IN |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Thread Length | 0.893 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.615 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Test Data Document | 36659-LC+72-1076 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 630 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 1294320-105 | Mercer Products & Manufacturing Company Dba Mercer Products & Manufacturing Co Div Mercer Products & Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 1294320-103 | 5/2 Secondary reference U.S. Government activity |
| 1294320-101 | 5/9 Secondary reference U.S. Government activity |
| 1294320-105 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-281-2856 is a Bolt,machine, manufactured by Mercer Products & Manufacturing Company Dba Mercer Products & Manufacturing Co Div Mercer Products & Manufacturing, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-281-2856 has 1 manufacturer part number on file: 1294320-105 (Mercer Products & Manufacturing Company Dba Mercer Products & Manufacturing Co Div Mercer Products & Manufacturing).
Key specifications for 1294320-105: Head Height: 0.200 INCHES NOMINAL IN; Fastener Length: 1.000 INCHES NOMINAL IN; Thread Length: 0.893 INCHES MAXIMUM IN; Material Document and Classification: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 15 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.