PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2691Adapter,angle

Aerospace Lighting Corporation · NSN 1660-01-121-6043 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-01-121-6043 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-121-6043. Primary manufacturer part number: 2691.
Features
  • Adapter,angle — FSC 1660
  • 2 verified cross-references
  • Primary manufacturer: Aerospace Lighting Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Adapter,angle, cataloged under National Stock Number 1660-01-121-6043, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Aerospace Lighting Corporation. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameAdapter,angle
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersAerospace Lighting Corporation (CAGE 59579); Nellcor Puritan Benn System Co (CAGE 83564)
Technical Specifications
ParameterValue
NSN1660-01-121-6043
Primary Part Number2691
Item NameAdapter,angle
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerAerospace Lighting Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-084-75662M1450 INTERCHANGEABLE
Disk Solid Plain
Caterpillar Inc Div Caterpillar Defense
3110-00-100-07371193749 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Chrysler Realty Company Llc Dba Daimler Chrysler
3110-00-144-8501 INTERCHANGEABLE
Bearing,ball,annular
2530-00-421-3845F59170 INTERCHANGEABLE
Parts Kit,hydraulic Brake Master
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
1650-00-513-48682691 INTERCHANGEABLE
Cap,linear Actuating Cylinder
Goodrich Corporation
5915-00-679-9363543-1781-003 INTERCHANGEABLE
Filter,band Pass
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5905-00-805-8507 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5998-00-929-6091BH2691 INTERCHANGEABLE
Circuit Card Assembly
Howell Instruments, Inc. Dba Howell Instruments Inc
5985-00-975-6291134204-0005 INTERCHANGEABLE
Attenuator,variable
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5998-01-023-7550 INTERCHANGEABLE
Circuit Card Assembly
Cross-Reference Index
Part NumberManufacturer
2691 PRIMARY Aerospace Lighting Corporation (USA)
2691 Nellcor Puritan Benn System Co (USA)
Related Parts
5330-00-084-7566INTERCHANGEABLE
DISK SOLID PLAIN
2M1450
3110-00-100-0737INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
1193749
3110-00-144-8501INTERCHANGEABLE
BEARING,BALL,ANNULAR
2530-00-421-3845INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE MASTER
F59170
1650-00-513-4868INTERCHANGEABLE
CAP,LINEAR ACTUATING CYLINDER
2691
5915-00-679-9363INTERCHANGEABLE
FILTER,BAND PASS
543-1781-003
5905-00-805-8507INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5998-00-929-6091INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
BH2691
5985-00-975-6291INTERCHANGEABLE
ATTENUATOR,VARIABLE
134204-0005
5998-01-023-7550INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6540-01-145-8139INTERCHANGEABLE
TEMPLE,SPECTACLE
2-691
5975-01-354-9989INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
2691

Frequently Asked Questions

What is NSN 1660-01-121-6043?

NSN 1660-01-121-6043 is a Adapter,angle, manufactured by Aerospace Lighting Corporation, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-01-121-6043?

NSN 1660-01-121-6043 has 2 cross-referenced part numbers: 2691 (Aerospace Lighting Corporation), 2691 (Nellcor Puritan Benn System Co).

What NSN replaces 1660-01-121-6043?

There are 12 known substitutes for 1660-01-121-6043: 5330-00-084-7566, 3110-00-100-0737, 3110-00-144-8501 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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