Washer, Recessed5310-01-111-5543

NSN 5310-01-111-5543 · NIIN 011115543

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

Government record, cited

Also searched as 5310-01-111-5543 · 5310011115543 · NIIN 011115543 · 01-111-5543 · FSC 5310 Nuts and Washers

Nearby stock numbers ← 5310-01-111-5542 Washer, Concave · 5310-01-111-5913 Washer →

5310-01-111-5543 — Nuts and Washers

Features

Washer,recessed — FSC 5310
Surface Finish: 32.0 MICROINCHES OUTER
Surface Finish: 63.0 MICROINCHES TOP
Surface Treatment Document and Classification: MIL-C-5541,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
Style Designator: RECESSED
Material Document and Classification: QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter: 0.558 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
Recess Depth: 0.022 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN

Identification

NSN: 5310-01-111-5543
NIIN: 011115543
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,recessed, cataloged under National Stock Number 5310-01-111-5543, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	5310-01-111-5543
Item Name	Washer,recessed
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Surface Finish	32.0 MICROINCHES OUTER
Surface Finish	63.0 MICROINCHES TOP
Surface Treatment Document and Classification	MIL-C-5541,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A
Style Designator	RECESSED
Material Document and Classification	QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter	0.558 INCHES MINIMUM AND 0.559 INCHES MAXIMUM IN
Recess Depth	0.022 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
Material Thickness	0.032 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
Surface Treatment	CHROMATE OVERALL
Material	ALUMINUM ALLOY 6061 OVERALL
Hole Diameter	0.367 INCHES MINIMUM AND 0.374 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
13058058	3/2 Design control — primary 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 5310-01-111-5543?

NSN 5310-01-111-5543 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-01-111-5543?

Key specifications for 5310-01-111-5543: Surface Finish: 32.0 MICROINCHES OUTER; Surface Finish: 63.0 MICROINCHES TOP; Overall Height: 0.054 INCHES MINIMUM AND 0.058 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-5541,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A. 11 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-111-5543 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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