The Bolt,machine, cataloged under National Stock Number 5306-00-730-4921, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Royer Industries Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-730-4921 |
| Primary Part Number | 500985 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Royer Industries Inc |
| Status | ACTIVE |
| Head Height | 0.112 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN |
| Fastener Length | 0.630 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN |
| Thread Length | 0.559 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | LEFT-HAND |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 8740 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 500985 PRIMARY | Royer Industries Inc (USA) |
| 500985 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 500985 | 5/9 Secondary reference U.S. Government activity |
| 500985 | 3/9 Design control — primary reference U.S. Government activity |
| 500985 | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies Inc |
| 500985 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 5306-00-730-4921 is a Bolt,machine, manufactured by Royer Industries Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-730-4921 has 2 manufacturer part numbers on file: 500985 (Royer Industries Inc), 500985 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 500985: Head Height: 0.112 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN; Fastener Length: 0.630 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN; Thread Length: 0.559 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL. 14 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.