PartsTable TECHNICAL DATA SHEET

NSN 5365-01-665-3702Government record, cited

Bushing, Sleeve5365-01-665-3702

NSN 5365-01-665-3702 · NIIN 016653702 · Part number 21E1638-308

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · FSC 5365 — Bushings, Rings, Shims, and Spacers · FSG 53 — Hardware and Abrasives · CAGE 78286

Government record, cited

NSN 5365-01-665-3702 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-665-3702. Manufacturer of record part number: 21E1638-308.

Also searched as 5365-01-665-3702 · 5365016653702 · NIIN 016653702 · 01-665-3702 · FSC 5365 Bushings, Rings, Shims, and Spacers · CAGE 78286 · 21E1638-308

Nearby stock numbers ← 5365-01-665-3699 Bushing, Sleeve · 5365-01-665-3706 Bushing, Sleeve →

Features

Bushing,sleeve — FSC 5365
Surface Treatment Document and Classification: AMS 2417 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Flange Outside Diameter: 2.00 INCHES NOMINAL IN
Body Outside Diameter: 1.4138 INCHES MINIMUM AND 1.4143 INCHES MAXIMUM IN
Style Designator: SOLID, EXTERNAL FLANGE ONE END
Material Document and Classification: ASTM B196 ASSN STD SINGLE MATERIAL RESPONSE OR SAE AMS 4651 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter: 1.0035 INCHES MINIMUM AND 1.0045 INCHES MAXIMUM IN
Surface Treatment: NICKEL AND ZINC OVERALL

Identification

NSN: 5365-01-665-3702
NIIN: 016653702
FSC: 5365 — Bushings, Rings, Shims, and Spacers
FSG: 53 — Hardware and Abrasives
Primary part number: 21E1638-308
Manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

General Description

The Bushing,sleeve, cataloged under National Stock Number 5365-01-665-3702, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	5365-01-665-3702
Primary Part Number	21E1638-308
Item Name	Bushing,sleeve
FSC / FSG	5365 / 53 — Bushings, Rings, Shims, and Spacers
Manufacturer	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Status	ACTIVE
Surface Treatment Document and Classification	AMS 2417 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Flange Outside Diameter	2.00 INCHES NOMINAL IN
Body Outside Diameter	1.4138 INCHES MINIMUM AND 1.4143 INCHES MAXIMUM IN
Style Designator	SOLID, EXTERNAL FLANGE ONE END
Material Document and Classification	ASTM B196 ASSN STD SINGLE MATERIAL RESPONSE OR SAE AMS 4651 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter	1.0035 INCHES MINIMUM AND 1.0045 INCHES MAXIMUM IN
Surface Treatment	NICKEL AND ZINC OVERALL
Flange Width	0.144 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
Material	COPPER ALLOY OVERALL

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
21E1638-308	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)

Reference documents

Reference	Meaning
21E1638-308	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 5365 — Bushings, Rings, Shims, and Spacers

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

5365-00-000-6078

5365-00-000-6078 · Item name not on file

5365-00-000-7436

5365-00-000-7436 · Item name not on file

5365-00-001-1292

PLUG,MACHINE THREAD

5365-00-001-1365

5365-00-001-1365 · Item name not on file

5365-00-001-1841

RING,TORQUE,TUBE,INBOARD,RUDDER

5365-00-001-1915

5365-00-001-1915 · Item name not on file

5365-00-001-1916

5365-00-001-1916 · Item name not on file

5365-00-001-1940

5365-00-001-1940 · Item name not on file

Frequently Asked Questions

What is NSN 5365-01-665-3702?

NSN 5365-01-665-3702 is a Bushing,sleeve, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.

What part numbers are listed for NSN 5365-01-665-3702?

NSN 5365-01-665-3702 has 1 manufacturer part number on file: 21E1638-308 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What are the specifications of 21E1638-308?

Key specifications for 21E1638-308: Surface Treatment Document and Classification: AMS 2417 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Flange Outside Diameter: 2.00 INCHES NOMINAL IN; Body Outside Diameter: 1.4138 INCHES MINIMUM AND 1.4143 INCHES MAXIMUM IN; Style Designator: SOLID, EXTERNAL FLANGE ONE END. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5365-01-665-3702 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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