The Bolt,machine, cataloged under National Stock Number 5306-01-481-7877, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-481-7877 |
| Primary Part Number | D48671 ITEM 17 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Fastener Length | 5.000 INCHES NOMINAL IN |
| Material Document and Classification | ASTM B21 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Quantity Per Inch | 13 |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| A48564MZZ | Hunt Valve Company, Inc. (USA) |
| D48671 ITEM 17 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| A48564MBF | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D48671 ITEM 17 | 3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
| A48564MZZ | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D48671 | D/9 Drawing number reference only Hunt Valve Company Inc Dba Union Flonetics |
NSN 5306-01-481-7877 is a Bolt,machine, manufactured by Hunt Valve Company, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-481-7877 has 2 manufacturer part numbers on file: A48564MZZ (Hunt Valve Company, Inc.), D48671 ITEM 17 (Hunt Valve Company, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-481-8604, 4820-01-482-2538. Verify interchangeability with system specifications before substitution.
Key specifications for D48671 ITEM 17: Fastener Length: 5.000 INCHES NOMINAL IN; Material Document and Classification: ASTM B21 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.500 INCHES IN; Thread Direction: RIGHT-HAND. 7 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.