The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-249-4182, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Flowserve Corp Dba Automax Actuators Div Flowserve Us Company. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-249-4182 |
| Primary Part Number | HB8-1/2-13X32 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Flowserve Corp Dba Automax Actuators Div Flowserve Us Company |
| Status | ACTIVE |
| Head Height | 0.302 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN |
| Fastener Length | 2.000 INCHES NOMINAL IN |
| Thread Length | 1.846 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZY |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS |
| 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 |
|---|---|
| HB8-1/2-13X32 | Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (USA) |
| Reference | Meaning |
|---|---|
| HB1-1/2-13X32 | 5/9 Secondary reference Flowserve Corp Dba Automax Actuators Div Flowserve Us Company |
| D-73539-65 | 3/1 Design control — primary reference Flowserve Corp Dba Automax Actuators Div Flowserve Us Company |
NSN 5305-01-249-4182 is a Screw,cap,hexagon Head, manufactured by Flowserve Corp Dba Automax Actuators Div Flowserve Us Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-249-4182 has 1 manufacturer part number on file: HB8-1/2-13X32 (Flowserve Corp Dba Automax Actuators Div Flowserve Us Company).
Key specifications for HB8-1/2-13X32: Head Height: 0.302 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN; Fastener Length: 2.000 INCHES NOMINAL IN; Thread Length: 1.846 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN; Criticality Code Justification: ZZZY. 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.