NSN 5305-01-299-6597 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-299-6597. Manufacturer of record part number: 509441-68.
Also searched as5305-01-299-6597 ·
5305012996597 ·
NIIN 012996597 ·
01-299-6597 ·
FSC 5305 Screws · CAGE 5N842 · 509441-68
Nearby stock numbers← 5305-01-299-6596 Screw, Cap, Socket Head
·
5305-01-299-6598 Screw, Cap, Socket Head →
5305-01-299-6597 — Screws
Features
Screw,cap,socket Head — FSC 5305
Width Across Flats: 0.312 INCHES NOMINAL IN
Head Height: 0.375 INCHES MAXIMUM IN
Fastener Length: 1.000 INCHES NOMINAL IN
Thread Length: 0.875 INCHES MAXIMUM IN
Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 43.0 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 OVERALL
Nominal Thread Diameter: 0.375 INCHES IN
Identification
NSN: 5305-01-299-6597
NIIN: 012996597
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: 509441-68
Manufacturer: Metrican Inc Dba Metrix Manufacturing Company
General Description
The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-299-6597, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Metrican Inc Dba Metrix Manufacturing Company. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5305-01-299-6597
Primary Part Number
509441-68
Item Name
Screw,cap,socket Head
FSC / FSG
5305 / 53 — Screws
Manufacturer
Metrican Inc Dba Metrix Manufacturing Company
Status
ACTIVE
Width Across Flats
0.312 INCHES NOMINAL IN
Head Height
0.375 INCHES MAXIMUM IN
Fastener Length
1.000 INCHES NOMINAL IN
Thread Length
0.875 INCHES MAXIMUM IN
Hardness Rating
36.0 ROCKWELL C MINIMUM AND 43.0 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 OVERALL
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
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5305-00-000-3669 · Item name not on file
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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 5305-01-299-6597?
NSN 5305-01-299-6597 is a Screw,cap,socket Head, manufactured by Metrican Inc Dba Metrix Manufacturing Company, classified under FSC 5305, Screws. Status: active.
What part numbers are listed for NSN 5305-01-299-6597?
NSN 5305-01-299-6597 has 2 manufacturer part numbers on file: 509441-68 (Metrican Inc Dba Metrix Manufacturing Company), 509441-68 (Apollo Aerospace Components Llc).
What are the specifications of 509441-68?
Key specifications for 509441-68: Width Across Flats: 0.312 INCHES NOMINAL IN; Head Height: 0.375 INCHES MAXIMUM IN; Fastener Length: 1.000 INCHES NOMINAL IN; Thread Length: 0.875 INCHES MAXIMUM IN. 15 specifications are documented in the U.S. Government catalog.
Is NSN 5305-01-299-6597 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.