The Bolt,machine, cataloged under National Stock Number 5306-00-531-8940, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-531-8940 |
| Primary Part Number | 312264 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Hole Configuration Style | DOUBLE HEXAGON LONGITUDINAL HOLE |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Surface Treatment Document and Classification | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Series Designator | UNF |
| Extended Washer Thickness | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Features Provided | FINISHED HEAD |
| Fastener Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Thread Length | 0.481 INCHES MINIMUM AND 0.552 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Hole Diameter | 0.060 INCHES NOMINAL IN |
| Hole Quantity | 3 |
| Hole Type | DRILLED |
| Thread Quantity Per Inch | 28 |
| Head Height | 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Width Between Flats | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Nonstandard Thread Pitch Diameter | +0.2213 TO 0.2238 INCHES IN |
| Criticality Code Justification | FEAT |
| Material | STEEL COMP 601 OVERALL |
| Surface Treatment | NICKEL AND CADMIUM OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5306-00-531-8940 is a Bolt,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-531-8940 has 4 cross-referenced part numbers: 312264 (Howmet Global Fastening Systems Inc Div Torrance Operations), 312264 (Midwest Sealing Systems Inc), 312264 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 312264 (Sps Technologies, Llc Dba PB Fasteners).
There is 1 known substitute for 5306-00-531-8940: 2520-00-734-8101. Verify interchangeability with system specifications before substitution.
Key specifications for 312264: Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD; Hole Configuration Style: DOUBLE HEXAGON LONGITUDINAL HOLE; Head Style: DOUBLE HEXAGON W/HOLE; Special Features: DUE TO CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES & MANUFACTURING PROCESS. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM, DEATH OR SERIOUS INJURY. 25 total characteristics are documented in the Federal Logistics Information System.