The Screw,machine, cataloged under National Stock Number 5305-00-891-8979, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-891-8979 |
| Primary Part Number | 12972 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems |
| Status | ACTIVE |
| Hole Diameter | 0.068 INCHES NOMINAL IN |
| Thread Series Designator | UNF |
| Thread Direction | RIGHT-HAND |
| Fastener Length | 1.343 INCHES MINIMUM AND 1.406 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Thread Quantity Per Inch | 32 |
| Head Style | HEXAGON |
| Thread Length | 1.281 INCHES MINIMUM AND 1.344 INCHES MAXIMUM IN |
| Width Between Flats | 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Hole Quantity | 1 |
| Screw Material | STEEL COMP 1018 |
| Head Height | 0.170 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Head Hole Configuration Style | HEXAGON FLATS |
| Screw Surface Treatment | CADMIUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 12972 PRIMARY | Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA) |
NSN 5305-00-891-8979 is a Screw,machine, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-891-8979 has 1 cross-referenced part number: 12972 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems).
There are 6 known substitutes for 5305-00-891-8979: 5905-00-403-4245, 5965-01-352-0961, 5305-01-412-6287 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 12972: Hole Diameter: 0.068 INCHES NOMINAL IN; Thread Series Designator: UNF; Thread Direction: RIGHT-HAND; Fastener Length: 1.343 INCHES MINIMUM AND 1.406 INCHES MAXIMUM IN. 16 total characteristics are documented in the Federal Logistics Information System.