NSN 5305-01-422-5159 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-422-5159. Manufacturer of record part number: 645HHMSS.
Nearby stock numbers← 5305-01-422-5099 Screw, Cap, Socket Head
·
5305-01-422-5178 Screw, Cap, Socket Head →
5305-01-422-5159 — Screws
Features
Screw,cap,hexagon Head — FSC 5305
Head Height: 4.0 MILLIMETERS NOMINAL MM
External Thread Tolerance Class: 6H
Fastener Length: 45.0 MILLIMETERS NOMINAL MM
Thread Pitch in Millimeters: 1.0
Thread Length: 45.0 MILLIMETERS NOMINAL MM
Nominal Thread Diameter: 6.0 MILLIMETERS MM
Head Style: HEXAGON
Identification
NSN: 5305-01-422-5159
NIIN: 014225159
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: 645HHMSS
Manufacturer: Fastcom Supply Corp
General Description
The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-422-5159, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastcom Supply Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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5305-00-000-1397 · Item name not on file
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5305-00-000-2625 · Item name not on file
5305-00-000-3669
5305-00-000-3669 · Item name not on file
5305-00-000-3830
5305-00-000-3830 · Item name not on file
5305-00-000-3831
5305-00-000-3831 · Item name not on file
Frequently Asked Questions
What is NSN 5305-01-422-5159?
NSN 5305-01-422-5159 is a Screw,cap,hexagon Head, manufactured by Fastcom Supply Corp, classified under FSC 5305, Screws. Status: active.
What part numbers are listed for NSN 5305-01-422-5159?
NSN 5305-01-422-5159 has 2 manufacturer part numbers on file: 645HHMSS (Fastcom Supply Corp), 6896448 (Naval Sea Systems Command).
What are the specifications of 645HHMSS?
Key specifications for 645HHMSS: Head Height: 4.0 MILLIMETERS NOMINAL MM; External Thread Tolerance Class: 6H; Fastener Length: 45.0 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 1.0. 11 specifications are documented in the U.S. Government catalog.
Is NSN 5305-01-422-5159 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.