Screw, Machine5305-01-657-2812

NSN 5305-01-657-2812 · NIIN 016572812 · Part number 91771A085

Mcmaster-Carr Supply Co · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 39428

Government record, cited

NSN 5305-01-657-2812 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-657-2812. Manufacturer of record part number: 91771A085.

Also searched as 5305-01-657-2812 · 5305016572812 · NIIN 016572812 · 01-657-2812 · FSC 5305 Screws · CAGE 39428 · 91771A085

Nearby stock numbers ← 5305-01-657-2807 Screw, Cap, Socket Head · 5305-01-657-2824 Screw, Machine →

5305-01-657-2812 — Screws

Features

Screw,machine — FSC 5305
Fastener Length: 0.875 INCHES NOMINAL IN
Nominal Thread Diameter: 0.086 INCHES IN
Head Style: FLAT COUNTERSUNK
Thread Direction: RIGHT-HAND
Screw Material: STEEL CORROSION RESISTING
Internal Drive Style: CROSS RECESS TYPE II
Countersink Angle: 82.0 DEGREES NOMINAL

Identification

NSN: 5305-01-657-2812
NIIN: 016572812
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: 91771A085
Manufacturer: Mcmaster-Carr Supply Co

General Description

The Screw,machine, cataloged under National Stock Number 5305-01-657-2812, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 9 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5305-01-657-2812
Primary Part Number	91771A085
Item Name	Screw,machine
FSC / FSG	5305 / 53 — Screws
Manufacturer	Mcmaster-Carr Supply Co
Status	ACTIVE
Fastener Length	0.875 INCHES NOMINAL IN
Nominal Thread Diameter	0.086 INCHES IN
Head Style	FLAT COUNTERSUNK
Thread Direction	RIGHT-HAND
Screw Material	STEEL CORROSION RESISTING
Internal Drive Style	CROSS RECESS TYPE II
Countersink Angle	82.0 DEGREES NOMINAL
Thread Quantity Per Inch	56
Thread Series Designator	UNIFIED NATIONAL COARSE (UNC)

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
91771A085 PRIMARY	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 5305-01-657-2812?

NSN 5305-01-657-2812 is a Screw,machine, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.

What part numbers are listed for NSN 5305-01-657-2812?

NSN 5305-01-657-2812 has 1 manufacturer part number on file: 91771A085 (Mcmaster-Carr Supply Co).

What are the specifications of 91771A085?

Key specifications for 91771A085: Fastener Length: 0.875 INCHES NOMINAL IN; Nominal Thread Diameter: 0.086 INCHES IN; Head Style: FLAT COUNTERSUNK; Thread Direction: RIGHT-HAND. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-657-2812 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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