The Screw,close Tolerance, cataloged under National Stock Number 5305-00-889-2912, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 23 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through both NSN and commercial part number lookups. 14 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-889-2912 |
| Primary Part Number | NAS1122-7H |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.102 INCHES MAXIMUM IN |
| Fastener Length | 0.699 INCHES MINIMUM AND 0.729 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.276 INCHES MINIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.438 INCHES NOMINAL IN |
| Grip Diameter | 0.1625 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNJC |
| Hole Diameter | 0.032 INCHES NOMINAL IN |
| Head Diameter | 0.255 INCHES MINIMUM AND 0.270 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 |
|---|---|
| NAS1122-7H PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1122-7H | 5/9 Secondary reference Nor-Cal Supply Co |
| NAS1122-7H | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1122-7H | 5/9 Secondary reference F and C Sales Inc |
| NAS1122-7H | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1122-7H | 5/9 Secondary reference Plastic and Metal Products Corporation |
| NAS1122-7H | 5/9 Secondary reference U.S. Government activity |
| NAS1122-7H | 3/2 Design control — primary reference U.S. Government activity |
| NAS1122-7H | 5/9 Secondary reference U.S. Government activity |
| NAS1122-7H | 5/9 Secondary reference Hi-Shear Corporation |
| NAS1122-7H | 5/9 Secondary reference Apcom Inc |
| NAS1122-7H | 5/9 Secondary reference Air Industries Co Inc |
| NAS1122-7H | 5/9 Secondary reference Fastener Innovation Technology, Inc. Dba F I T |
| NAS1122-7H | 5/9 Secondary reference U.S. Government activity |
| NAS1122-7H | 5/9 Secondary reference Qualified Air Components Inc. |
NSN 5305-00-889-2912 is a Screw,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-889-2912 has 1 manufacturer part number on file: NAS1122-7H (Huck International, Inc).
Key specifications for NAS1122-7H: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.102 INCHES MAXIMUM IN. 23 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.