PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BB2760Ring Assembly,electrical Contact

Moog Inc. · NSN 5977-01-127-4401 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-01-127-4401 — this item is cataloged by the U.S. Government under National Stock Number 5977-01-127-4401. Primary manufacturer part number: BB2760.
Features
  • Ring Assembly,electrical Contact — FSC 5977
  • Overall Diameter: 0.650 INCHES NOMINAL IN
  • Surface Treatment: GOLD RING
  • FSC Application Data: INERTIAL NAVIGATION GROUP,OA-89K5/ASN-130
  • 3 verified cross-references
  • Primary manufacturer: Moog Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-01-127-4401, is classified within Federal Supply Class 5977 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Moog Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5977-01-127-4401
Primary Part NumberBB2760
Item NameRing Assembly,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerMoog Inc.
StatusACTIVE
Overall Diameter0.650 INCHES NOMINAL IN
Surface TreatmentGOLD RING
FSC Application DataINERTIAL NAVIGATION GROUP,OA-89K5/ASN-130
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
9540-00-805-6445 INTERCHANGEABLE
Structural Section,special Shape
Cross-Reference Index
Part NumberManufacturer
BB2760 PRIMARY Moog Inc. (USA)
60382-1 Electro-Tec Corp Dba Moog Inc., Components Group (USA)
917160-1 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
9540-00-805-6445INTERCHANGEABLE
STRUCTURAL SECTION,SPECIAL SHAPE

Frequently Asked Questions

What is NSN 5977-01-127-4401?

NSN 5977-01-127-4401 is a Ring Assembly,electrical Contact, manufactured by Moog Inc., classified under FSC 5977 (No Item Name Available). Status: active.

What are the part numbers for NSN 5977-01-127-4401?

NSN 5977-01-127-4401 has 3 cross-referenced part numbers: BB2760 (Moog Inc.), 60382-1 (Electro-Tec Corp Dba Moog Inc., Components Group), 917160-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5977-01-127-4401?

There is 1 known substitute for 5977-01-127-4401: 9540-00-805-6445. Verify interchangeability with system specifications before substitution.

What are the specifications of BB2760?

Key specifications for BB2760: Overall Diameter: 0.650 INCHES NOMINAL IN; Surface Treatment: GOLD RING; FSC Application Data: INERTIAL NAVIGATION GROUP,OA-89K5/ASN-130; Overall Length: 1.271 INCHES MINIMUM AND 1.291 INCHES MAXIMUM IN. 4 total characteristics are documented in the Federal Logistics Information System.

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