PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4971Fixture,aircraft Maintenance

Tech Resources, Inc · NSN 4920-01-375-5528 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-375-5528 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-375-5528. Primary manufacturer part number: 4971.
Features
  • Fixture,aircraft Maintenance — FSC 4920
  • Nominal Overall Width: 19.000 INCHES IN
  • Functional Description: PROVIDES A REPEATABLE DEVICE THATWILL PERFORM ELECTRICAL VERIFICATION TESTING OF THE HATS (HOODED ANTENNA TEST SET( AT SPECIFIED CALIBRATION INTERVALS. R.F. TEST FIXTURE CONSISTS OF:ANTENNA HEAD ASSY,ALIGNMENT BAR,AND A PLUNGER ASSY
  • Nominal Overall Length: 19.000 INCHES IN
  • Nominal Overall Height: 9.700 INCHES IN
  • Reference Data and Literature: SERD 99Q52C
  • 1 verified cross-reference
  • Primary manufacturer: Tech Resources, Inc
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-01-375-5528, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Tech Resources, Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-01-375-5528
Primary Part Number4971
Item NameFixture,aircraft Maintenance
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerTech Resources, Inc
StatusACTIVE
Nominal Overall Width19.000 INCHES IN
Functional DescriptionPROVIDES A REPEATABLE DEVICE THATWILL PERFORM ELECTRICAL VERIFICATION TESTING OF THE HATS (HOODED ANTENNA TEST SET( AT SPECIFIED CALIBRATION INTERVALS. R.F. TEST FIXTURE CONSISTS OF:ANTENNA HEAD ASSY,ALIGNMENT BAR,AND A PLUNGER ASSY
Nominal Overall Length19.000 INCHES IN
Nominal Overall Height9.700 INCHES IN
Reference Data and LiteratureSERD 99Q52C
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2825-00-146-00514971 INTERCHANGEABLE
Shaft Assembly
Northrop Grumman Systems Corporation Div Marine Systems
4730-00-277-4780161256 INTERCHANGEABLE
Fitting,lubrication
Goodrich Corporation
9390-00-531-3110KSD4520-1 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
Kaman Aerospace Corporation Dba Air Vehicles & Mro Division
5910-00-893-517911065337-004 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Us Army Aviation and Missile Command
4710-01-005-35994971 INTERCHANGEABLE
Tube Assembly,metal
Elliott Machine Works Inc
4820-01-131-32854971-G502 INTERCHANGEABLE
Cock,drain
Howell Laboratories Inc Dba Howell Laboratories Inc
4820-01-185-66554971-G501 INTERCHANGEABLE
Cock,drain
Howell Laboratories Inc Dba Howell Laboratories Inc
5935-01-433-56794971 INTERCHANGEABLE
Backshell,electrical Connector
Abb Installation Products Inc
Cross-Reference Index
Part NumberManufacturer
4971 PRIMARY Tech Resources, Inc (USA)
Related Parts
2825-00-146-0051INTERCHANGEABLE
SHAFT ASSEMBLY
4971
4730-00-277-4780INTERCHANGEABLE
FITTING,LUBRICATION
161256
9390-00-531-3110INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
KSD4520-1
5910-00-893-5179INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
11065337-004
4710-01-005-3599INTERCHANGEABLE
TUBE ASSEMBLY,METAL
4971
4820-01-131-3285INTERCHANGEABLE
COCK,DRAIN
4971-G502
4820-01-185-6655INTERCHANGEABLE
COCK,DRAIN
4971-G501
5935-01-433-5679INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
4971

Frequently Asked Questions

What is NSN 4920-01-375-5528?

NSN 4920-01-375-5528 is a Fixture,aircraft Maintenance, manufactured by Tech Resources, Inc, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-375-5528?

NSN 4920-01-375-5528 has 1 cross-referenced part number: 4971 (Tech Resources, Inc).

What NSN replaces 4920-01-375-5528?

There are 8 known substitutes for 4920-01-375-5528: 2825-00-146-0051, 4730-00-277-4780, 9390-00-531-3110 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4971?

Key specifications for 4971: Nominal Overall Width: 19.000 INCHES IN; Functional Description: PROVIDES A REPEATABLE DEVICE THATWILL PERFORM ELECTRICAL VERIFICATION TESTING OF THE HATS (HOODED ANTENNA TEST SET( AT SPECIFIED CALIBRATION INTERVALS. R.F. TEST FIXTURE CONSISTS OF:ANTENNA HEAD ASSY,ALIGNMENT BAR,AND A PLUNGER ASSY; Nominal Overall Length: 19.000 INCHES IN; End Item Identification: B-1B ACFT. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com