Washer, Recessed5310-00-378-5142

NSN 5310-00-378-5142 · NIIN 003785142

FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5310-00-378-5142 · 5310003785142 · NIIN 003785142 · 00-378-5142 · FSC 5310 Nuts and Washers · SK5320-5097 · SCB125604

Nearby stock numbers ← 5310-00-378-4610 · 5310-00-378-5143 →

5310-00-378-5142 — Nuts and Washers

Features

Washer,recessed — FSC 5310
Surface Finish: 63.0 MICROINCHES BOTTOM
Surface Finish: 63.0 MICROINCHES TOP
Style Designator: SPRING TENSION
Outside Diameter: 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
Recess Depth: 0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
Material Thickness: 0.047 INCHES NOMINAL IN
Material: COPPER ALLOY 360 OVERALL

Identification

NSN: 5310-00-378-5142
NIIN: 003785142
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,recessed, cataloged under National Stock Number 5310-00-378-5142, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-00-378-5142
Item Name	Washer,recessed
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Surface Finish	63.0 MICROINCHES BOTTOM
Surface Finish	63.0 MICROINCHES TOP
Style Designator	SPRING TENSION
Outside Diameter	0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
Recess Depth	0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
Material Thickness	0.047 INCHES NOMINAL IN
Material	COPPER ALLOY 360 OVERALL
Hole Diameter	0.204 INCHES MINIMUM AND 0.214 INCHES MAXIMUM 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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
SK5320-5097	3/9 Design control — primary reference Leeds and Northrup Co a Unit of General Signal Corp
SCB125604	5/2 Secondary reference U.S. Government activity

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 5310-00-378-5142?

NSN 5310-00-378-5142 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-00-378-5142?

Key specifications for 5310-00-378-5142: Surface Finish: 63.0 MICROINCHES BOTTOM; Surface Finish: 63.0 MICROINCHES TOP; Overall Height: 0.078 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN; Style Designator: SPRING TENSION. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5310-00-378-5142 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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