Screw, Cap, Socket Head5305-01-628-9978

NSN 5305-01-628-9978 · NIIN 016289978 · Part number 92805A537

The Socket Source, Inc. Dba Socket Source · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 51QX6

Government record, cited

NSN 5305-01-628-9978 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-628-9978. Manufacturer of record part number: 92805A537.

Also searched as 5305-01-628-9978 · 5305016289978 · NIIN 016289978 · 01-628-9978 · FSC 5305 Screws · CAGE 51QX6 · 92805A537

Nearby stock numbers ← 5305-01-628-9959 Screw, Machine · 5305-01-629-0026 Setscrew →

5305-01-628-9978 — Screws

Features

Screw,cap,socket Head — FSC 5305
Width Across Flats: 0.156 INCHES NOMINAL IN
Fastener Length: 0.500 INCHES NOMINAL IN
Thread Length: 0.339 INCHES NOMINAL IN
Nominal Thread Diameter: 0.250 INCHES IN
Head Style: FLAT COUNTERSUNK
Thread Direction: RIGHT-HAND
Internal Drive Style: HEXAGON

Identification

NSN: 5305-01-628-9978
NIIN: 016289978
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: 92805A537
Manufacturer: The Socket Source, Inc. Dba Socket Source

General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-628-9978, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Socket Source, Inc. Dba Socket Source. Government technical data includes 13 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.

Technical Specifications

Parameter	Value
NSN	5305-01-628-9978
Primary Part Number	92805A537
Item Name	Screw,cap,socket Head
FSC / FSG	5305 / 53 — Screws
Manufacturer	The Socket Source, Inc. Dba Socket Source
Status	ACTIVE
Width Across Flats	0.156 INCHES NOMINAL IN
Fastener Length	0.500 INCHES NOMINAL IN
Thread Length	0.339 INCHES NOMINAL IN
Nominal Thread Diameter	0.250 INCHES IN
Head Style	FLAT COUNTERSUNK
Thread Direction	RIGHT-HAND
Internal Drive Style	HEXAGON
Countersink Angle	82.0 DEGREES NOMINAL
Thread Class	3A A
Thread Quantity Per Inch	20
Material	STEEL CORROSION RESISTING OVERALL
Thread Series Designator	UNIFIED NATIONAL COARSE (UNC)
Head Diameter	0.531 INCHES NOMINAL IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
92805A537 PRIMARY	The Socket Source, Inc. Dba Socket Source (USA)
92805A537	Mcmaster-Carr Supply Co (USA)

No interchangeability data on file.

Other items in FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-000-0094

SCREW,CLOSE TOLERANCE

5305-00-000-0094

SCREW,CLOSE TOLERANCE

5305-00-000-0094

SCREW,CLOSE TOLERANCE

5305-00-000-1397

5305-00-000-1397 · Item name not on file

5305-00-000-2625

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 5305-01-628-9978?

NSN 5305-01-628-9978 is a Screw,cap,socket Head, manufactured by The Socket Source, Inc. Dba Socket Source, classified under FSC 5305, Screws. Status: active.

What part numbers are listed for NSN 5305-01-628-9978?

NSN 5305-01-628-9978 has 2 manufacturer part numbers on file: 92805A537 (The Socket Source, Inc. Dba Socket Source), 92805A537 (Mcmaster-Carr Supply Co).

What are the specifications of 92805A537?

Key specifications for 92805A537: Width Across Flats: 0.156 INCHES NOMINAL IN; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Length: 0.339 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES IN. 13 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-628-9978 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.

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