The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-871-8772, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Satair A/s. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-871-8772 |
| Primary Part Number | 74855 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Satair A/s |
| Status | ACTIVE |
| Head Height | 0.150 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN |
| Fastener Length | 0.870 INCHES NOMINAL IN |
| Distance From Centerline to Flat | 0.240 INCHES NOMINAL IN |
| Thread Length | 0.410 INCHES NOMINAL IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6415 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DEE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.310 INCHES NOMINAL IN |
| Grip Diameter | 0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4340 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.750 INCHES NOMINAL IN |
| 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 |
|---|---|
| 74855 | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| 74855 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-871-8772 is a Bolt,close Tolerance, manufactured by Satair A/s, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-871-8772 has 1 manufacturer part number on file: 74855 (Satair A/s).
Key specifications for 74855: Head Height: 0.150 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN; Fastener Length: 0.870 INCHES NOMINAL IN; Distance From Centerline to Flat: 0.240 INCHES NOMINAL IN; Thread Length: 0.410 INCHES NOMINAL IN. 16 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.