Washer, Concave5310-01-286-2559

NSN 5310-01-286-2559 · NIIN 012862559 · Part number 65155-00125-101

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 78286

Government record, cited

NSN 5310-01-286-2559 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-286-2559. Manufacturer of record part number: 65155-00125-101.

Also searched as 5310-01-286-2559 · 5310012862559 · NIIN 012862559 · 01-286-2559 · FSC 5310 Nuts and Washers · CAGE 78286 · 65155-00125-101

Nearby stock numbers ← 5310-01-286-2526 · 5310-01-286-2560 Washer, Flat →

5310-01-286-2559 — Nuts and Washers

Features

Washer,concave — FSC 5310
Surface Finish: 32.0 MICROINCHES BOTTOM
Radius: 3.820 INCHES NOMINAL IN
Style Designator: CONCAVE
Outside Diameter: 1.250 INCHES NOMINAL IN
Recess Depth: 0.010 INCHES NOMINAL IN
Material Thickness: 0.200 INCHES NOMINAL IN
Material: TITANIUM ALLOY OVERALL

Identification

NSN: 5310-01-286-2559
NIIN: 012862559
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 65155-00125-101
Manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

General Description

The Washer,concave, cataloged under National Stock Number 5310-01-286-2559, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 8 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	5310-01-286-2559
Primary Part Number	65155-00125-101
Item Name	Washer,concave
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Status	ACTIVE
Surface Finish	32.0 MICROINCHES BOTTOM
Radius	3.820 INCHES NOMINAL IN
Style Designator	CONCAVE
Outside Diameter	1.250 INCHES NOMINAL IN
Recess Depth	0.010 INCHES NOMINAL IN
Material Thickness	0.200 INCHES NOMINAL IN
Material	TITANIUM ALLOY OVERALL
Hole Diameter	0.688 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	F

Cross-Reference Index

Part Number	Manufacturer
65155-00125-101 PRIMARY	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (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 5310-01-286-2559?

NSN 5310-01-286-2559 is a Washer,concave, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-286-2559?

NSN 5310-01-286-2559 has 1 manufacturer part number on file: 65155-00125-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What are the specifications of 65155-00125-101?

Key specifications for 65155-00125-101: Surface Finish: 32.0 MICROINCHES BOTTOM; Radius: 3.820 INCHES NOMINAL IN; Style Designator: CONCAVE; Outside Diameter: 1.250 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-286-2559 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.

PartsTable Design LLC · partstable.com