Washer, Shouldered5310-01-392-8412

NSN 5310-01-392-8412 · NIIN 013928412 · Part number 277B-1-8-F-4

Isometrics Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 55242

Government record, cited

NSN 5310-01-392-8412 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-392-8412. Manufacturer of record part number: 277B-1-8-F-4.

Also searched as 5310-01-392-8412 · 5310013928412 · NIIN 013928412 · 01-392-8412 · FSC 5310 Nuts and Washers · CAGE 55242 · 277B-1-8-F-4

Nearby stock numbers ← 5310-01-392-7962 Nut, Plain, Hexagon · 5310-01-392-8413 Washer, Shouldered →

5310-01-392-8412 — Nuts and Washers

Features

Washer,shouldered — FSC 5310
Shoulder Height: 0.750 INCHES NOMINAL IN
Style Designator: SHOULDERED
Outside Diameter: 3.905 INCHES NOMINAL IN
Material Thickness: 0.125 INCHES NOMINAL IN
Shoulder Diameter: 3.155 INCHES NOMINAL IN
Material: PLASTIC POLYAMIDE NYLON OVERALL
Hole Diameter: 2.905 INCHES NOMINAL IN

Identification

NSN: 5310-01-392-8412
NIIN: 013928412
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 277B-1-8-F-4
Manufacturer: Isometrics Inc

General Description

The Washer,shouldered, cataloged under National Stock Number 5310-01-392-8412, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Isometrics Inc. Government technical data includes 7 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	5310-01-392-8412
Primary Part Number	277B-1-8-F-4
Item Name	Washer,shouldered
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Isometrics Inc
Status	ACTIVE
Shoulder Height	0.750 INCHES NOMINAL IN
Style Designator	SHOULDERED
Outside Diameter	3.905 INCHES NOMINAL IN
Material Thickness	0.125 INCHES NOMINAL IN
Shoulder Diameter	3.155 INCHES NOMINAL IN
Material	PLASTIC POLYAMIDE NYLON OVERALL
Hole Diameter	2.905 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
277B-1-8-F-4 PRIMARY	Isometrics Inc (USA)

No interchangeability data on file.

Other items in FSC 5310 — Nuts and Washers

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

5310-00-000-0040

5310-00-000-0040 · Item name not on file

5310-00-000-0077

NUT,PLAIN,ROUND

5310-00-000-0079

WASHER,FLAT

5310-00-000-0079

WASHER,FLAT

5310-00-000-1146

5310-00-000-1146 · Item name not on file

5310-00-000-3815

5310-00-000-3815 · Item name not on file

5310-00-000-4532

5310-00-000-4532 · Item name not on file

5310-00-000-4540

5310-00-000-4540 · Item name not on file

Frequently Asked Questions

What is NSN 5310-01-392-8412?

NSN 5310-01-392-8412 is a Washer,shouldered, manufactured by Isometrics Inc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-392-8412?

NSN 5310-01-392-8412 has 1 manufacturer part number on file: 277B-1-8-F-4 (Isometrics Inc).

What are the specifications of 277B-1-8-F-4?

Key specifications for 277B-1-8-F-4: Shoulder Height: 0.750 INCHES NOMINAL IN; Style Designator: SHOULDERED; Outside Diameter: 3.905 INCHES NOMINAL IN; Material Thickness: 0.125 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-392-8412 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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