Washer, Recessed5310-01-146-9911

NSN 5310-01-146-9911 · NIIN 011469911 · Part number 65103-11527-101

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

Government record, cited

NSN 5310-01-146-9911 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-146-9911. Manufacturer of record part number: 65103-11527-101.

Also searched as 5310-01-146-9911 · 5310011469911 · NIIN 011469911 · 01-146-9911 · FSC 5310 Nuts and Washers · CAGE 78286 · 65103-11527-101

Nearby stock numbers ← 5310-01-146-9910 Washer, Recessed · 5310-01-146-9912 Washer, Recessed →

5310-01-146-9911 — Nuts and Washers

Features

Washer,recessed — FSC 5310
Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Style Designator: RECESSED
Material Document and Classification: MIL-S-18729,COND ANNEALED MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000,COND ANNEALED MIL SPEC 2ND MATERIAL RESPONSE OVERALL
Outside Diameter: 1.062 INCHES NOMINAL IN
Material Thickness: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
Recess Diameter: 0.775 INCHES NOMINAL IN

Identification

NSN: 5310-01-146-9911
NIIN: 011469911
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 65103-11527-101
Manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

General Description

The Washer,recessed, cataloged under National Stock Number 5310-01-146-9911, 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 12 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	5310-01-146-9911
Primary Part Number	65103-11527-101
Item Name	Washer,recessed
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Status	ACTIVE
Surface Treatment Document and Classification	QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hardness Rating	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Style Designator	RECESSED
Material Document and Classification	MIL-S-18729,COND ANNEALED MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000,COND ANNEALED MIL SPEC 2ND MATERIAL RESPONSE OVERALL
Outside Diameter	1.062 INCHES NOMINAL IN
Material Thickness	0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
Recess Diameter	0.775 INCHES NOMINAL IN
Surface Treatment	CADMIUM AND CHROMATE OVERALL
Minimum Tensile Strength	125000 POUNDS PER SQUARE INCH LBS
Material	STEEL COMP 4130 OR STEEL COMP E4340 OVERALL
Hole Diameter	0.631 INCHES MINIMUM AND 0.643 INCHES MAXIMUM IN
Recess Angle	90.0 DEGREES NOMINAL

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
65103-11527-101 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 5310-01-146-9911?

NSN 5310-01-146-9911 is a Washer,recessed, 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 5310-01-146-9911?

NSN 5310-01-146-9911 has 1 manufacturer part number on file: 65103-11527-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What are the specifications of 65103-11527-101?

Key specifications for 65103-11527-101: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Style Designator: RECESSED; Material Document and Classification: MIL-S-18729,COND ANNEALED MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000,COND ANNEALED MIL SPEC 2ND MATERIAL RESPONSE OVERALL. 12 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-146-9911 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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