The Bolt,machine, cataloged under National Stock Number 5306-00-939-9737, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc Div Torrance Operations. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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 | 5306-00-939-9737 |
| Primary Part Number | 503437 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Howmet Global Fastening Systems Inc Div Torrance Operations |
| Status | ACTIVE |
| Hole Quantity | 4 |
| Thread Direction | RIGHT-HAND |
| Hole Type | DRILLED |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Series Designator | UNJC |
| Width Between Flats | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Extended Washer Thickness | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 20 |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Extended Washer Diameter | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Head Height | 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material | STEEL COMP 8740 OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Hole Diameter | 0.070 INCHES NOMINAL IN |
| Features Provided | FINISHED HEAD |
| Thread Class | 3A A |
| Thread Length | 0.390 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Hole Configuration Style | HEXAGON LONGITUDINAL HOLE |
| Fastener Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5306-00-939-9737 is a Bolt,machine, manufactured by Howmet Global Fastening Systems Inc Div Torrance Operations, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-939-9737 has 2 cross-referenced part numbers: 503437 (Howmet Global Fastening Systems Inc Div Torrance Operations), 503437 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
There is 1 known substitute for 5306-00-939-9737: 5310-00-022-5851. Verify interchangeability with system specifications before substitution.
Key specifications for 503437: Hole Quantity: 4; Thread Direction: RIGHT-HAND; Hole Type: DRILLED; Head Style: DOUBLE HEXAGON W/HOLE. 24 total characteristics are documented in the Federal Logistics Information System.