The Screw,close Tolerance, cataloged under National Stock Number 5305-01-646-2006, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Saturn Fasteners Inc. The record lists 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Saturn Fasteners Inc (CAGE 0K6Z0); Fastener Technology Corp (CAGE 58794); Fastener Innovation Technology, Inc. Dba F I T (CAGE 58998); Pilgrim Screw Corp Dba Pilgrim Aerospace Fasteners Div Arizona (CAGE 1GP79); Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (CAGE 27624) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-646-2006 |
| Primary Part Number | JSFB27-3-5 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Saturn Fasteners Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| JSFB27-3-5 PRIMARY | Saturn Fasteners Inc (USA) |
| JSFB27-3-5 | Fastener Technology Corp (USA) |
| JSFB27-3-5 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| JSFB27-3-5 | Pilgrim Screw Corp Dba Pilgrim Aerospace Fasteners Div Arizona (USA) |
| JSFB27-3-5 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| JSFB27-3-5 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| JSFB27-3-5 PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| JSFB27-3-5 | Houston Precision Fasteners I Lp (USA) |
| Reference | Meaning |
|---|---|
| JSFB27-3-5 | 1/2 Source control — Government-approved source U.S. Government activity |
| JSFB27-3-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-646-2006 is a Screw,close Tolerance, manufactured by Saturn Fasteners Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-646-2006 has 8 manufacturer part numbers on file: JSFB27-3-5 (Saturn Fasteners Inc), JSFB27-3-5 (Fastener Technology Corp), JSFB27-3-5 (Fastener Innovation Technology, Inc. Dba F I T), JSFB27-3-5 (Pilgrim Screw Corp Dba Pilgrim Aerospace Fasteners Div Arizona), JSFB27-3-5 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 3 more.
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.