Spacer and Pin Assembly1615-00-891-3129

NSN 1615-00-891-3129 · NIIN 008913129 · Part number 6435-20063-010

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · FSC 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components · FSG 16 — Aircraft Components and Accessories · CAGE 78286

Government record, cited

NSN 1615-00-891-3129 — this item is cataloged by the U.S. Government under National Stock Number 1615-00-891-3129. Manufacturer of record part number: 6435-20063-010.

Also searched as 1615-00-891-3129 · 1615008913129 · NIIN 008913129 · 00-891-3129 · FSC 1615 Helicopter Rotor Blades, Drive Mechanisms and Components · CAGE 78286 · 6435-20063-010

Nearby stock numbers ← 1615-00-891-3128 · 1615-00-891-3134 →

Features

Spacer and Pin Assembly — FSC 1615
General Characteristics Item Description: STEEL MIL-T-6736 COMP 4130 COND AOR N,BLACK OXIDE COATED MIL-C-13924 CLASS 1,DIM.,0.800 IN. MIN,0.802 IN. MAXO/A LG,4.844 IN. NOM FLANGE OD,0.187 IN. NOM FLANGE THK,4.250 IN. NOM OD,4.000 IN. NOM ID TTPERED 0.500 IN. LG TO3.7665 IN. MIN,3.7670 IN. MAX ID,TWO HOLES 0.1870 IN. MIN,0.1875 IN. MAX DRILLED IN FLANGE FACE AT 90 AND 270 EGON 4.547 IN. DIA BOLT CIRCLE,TWO NAS607-3-3 PINS INSERTED IN HOLES W/PINS EXTENDING 0.156 IN. FROM FACE,MAX SURFACE FINISH,FLANGE RIGHT FACE 63 MICROINCHES AA,ALL OTHER SURFACES 100 MICROINCHES AA IN
1 manufacturer part number on file
Manufacturer of record: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

Identification

NSN: 1615-00-891-3129
NIIN: 008913129
FSC: 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 6435-20063-010
Manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

General Description

The Spacer and Pin Assembly, cataloged under National Stock Number 1615-00-891-3129, is classified within Federal Supply Class 1615 (Helicopter Rotor Blades, Drive Mechanisms and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 1 specification, 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	1615-00-891-3129
Primary Part Number	6435-20063-010
Item Name	Spacer and Pin Assembly
FSC / FSG	1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components
Manufacturer	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Status	ACTIVE
General Characteristics Item Description	STEEL MIL-T-6736 COMP 4130 COND AOR N,BLACK OXIDE COATED MIL-C-13924 CLASS 1,DIM.,0.800 IN. MIN,0.802 IN. MAXO/A LG,4.844 IN. NOM FLANGE OD,0.187 IN. NOM FLANGE THK,4.250 IN. NOM OD,4.000 IN. NOM ID TTPERED 0.500 IN. LG TO3.7665 IN. MIN,3.7670 IN. MAX ID,TWO HOLES 0.1870 IN. MIN,0.1875 IN. MAX DRILLED IN FLANGE FACE AT 90 AND 270 EGON 4.547 IN. DIA BOLT CIRCLE,TWO NAS607-3-3 PINS INSERTED IN HOLES W/PINS EXTENDING 0.156 IN. FROM FACE,MAX SURFACE FINISH,FLANGE RIGHT FACE 63 MICROINCHES AA,ALL OTHER SURFACES 100 MICROINCHES AA 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

Part Number	Manufacturer
6435-20063-010 PRIMARY	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)

No interchangeability data on file.

Other items in FSC 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components

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

1615-00-001-1399

1615-00-001-1399 · Item name not on file

1615-00-001-1400

1615-00-001-1400 · Item name not on file

1615-00-001-1774

1615-00-001-1774 · Item name not on file

1615-00-001-2675

1615-00-001-2675 · Item name not on file

1615-00-001-6441

1615-00-001-6441 · Item name not on file

1615-00-001-6442

1615-00-001-6442 · Item name not on file

1615-00-003-1146

BOLT ASSEMBLY,ROTARY WING HEAD

1615-00-003-1147

1615-00-003-1147 · Item name not on file

Frequently Asked Questions

What is NSN 1615-00-891-3129?

NSN 1615-00-891-3129 is a Spacer and Pin Assembly, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.

What part numbers are listed for NSN 1615-00-891-3129?

NSN 1615-00-891-3129 has 1 manufacturer part number on file: 6435-20063-010 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What are the specifications of 6435-20063-010?

Key specifications for 6435-20063-010: General Characteristics Item Description: STEEL MIL-T-6736 COMP 4130 COND AOR N,BLACK OXIDE COATED MIL-C-13924 CLASS 1,DIM.,0.800 IN. MIN,0.802 IN. MAXO/A LG,4.844 IN. NOM FLANGE OD,0.187 IN. NOM FLANGE THK,4.250 IN. NOM OD,4.000 IN. NOM ID TTPERED 0.500 IN. LG TO3.7665 IN. MIN,3.7670 IN. MAX ID,TWO HOLES 0.1870 IN. MIN,0.1875 IN. MAX DRILLED IN FLANGE FACE AT 90 AND 270 EGON 4.547 IN. DIA BOLT CIRCLE,TWO NAS607-3-3 PINS INSERTED IN HOLES W/PINS EXTENDING 0.156 IN. FROM FACE,MAX SURFACE FINISH,FLANGE RIGHT FACE 63 MICROINCHES AA,ALL OTHER SURFACES 100 MICROINCHES AA IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 1615-00-891-3129 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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