The Bolt,machine, cataloged under National Stock Number 5306-00-849-8262, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Kito Mfg Co. Ltd. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-849-8262 |
| Primary Part Number | 522811 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Kito Mfg Co. Ltd |
| Status | ACTIVE |
| Head Height | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Fastener Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Thread Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5708 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 | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 522811 | Kito Mfg Co. Ltd (JPN) |
| 522811 | Necchi Spa (ITA) |
| 522811 | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| 522811 | 5/9 Secondary reference Foret Systems Inc |
| 522811 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 522811 | 3/9 Design control — primary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 522811 | 5/2 Secondary reference U.S. Government activity |
| 522811 | 5/2 Secondary reference U.S. Government activity |
| 5222811 | 5/9 Secondary reference Mnr Tool Engineering Inc |
| 522811 | 5/9 Secondary reference Kito Mfg Co. Ltd |
| 522811 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-849-8262 is a Bolt,machine, manufactured by Kito Mfg Co. Ltd, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-849-8262 has 3 manufacturer part numbers on file: 522811 (Kito Mfg Co. Ltd), 522811 (Necchi Spa), 522811 (Bristol Industries, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-136-0721. Verify interchangeability with system specifications before substitution.
Key specifications for 522811: Head Height: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN; Fastener Length: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN; Thread Length: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN; Material Document and Classification: AMS 5708 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 13 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.