The Screw,close Tolerance, cataloged under National Stock Number 5305-00-151-6936, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-151-6936 |
| Primary Part Number | 1128CSM46504-13 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Fastener Length | 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Thread Length | 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM ALL HOLES IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.250 INCHES NOMINAL IN |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | SLOT |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.070 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM 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 |
|---|---|
| 1128CSM46504-13 | Hi-Shear Corporation (USA) |
| 1128CSM46504-13 | Howmet Global Fastening Systems Inc (USA) |
| 1128CSM46504-13 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1128CSM46504-13 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 1128CSM46504-13 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 1128CSM46504-13 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 1128CSM46504-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5305-00-151-6936 is a Screw,close Tolerance, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-151-6936 has 5 manufacturer part numbers on file: 1128CSM46504-13 (Hi-Shear Corporation), 1128CSM46504-13 (Howmet Global Fastening Systems Inc), 1128CSM46504-13 (Northrop Grumman Systems Corporation), 1128CSM46504-13 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 1128CSM46504-13 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 1128CSM46504-13: Fastener Length: 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN; Thread Length: 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Shank Unthreaded Hole Diameter: 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM ALL HOLES IN; Nominal Thread Diameter: 0.312 INCHES IN. 17 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.