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Technical Data Sheet
PartsTable / MRO / AS53731
AS53731 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The FUSEHOLDER,BLOCK is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY CONTACT, body_style: SIDE BARRIER TYPE, body_length: 3.125 INCHES NOMINAL IN, overall_width: 1.688 INCHES MAXIMUM IN, base_thickness: 0.290 INCHES NOMINAL IN, overall_height: 0.594 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5920-00-685-9891, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ AS53731
NSN: 5920-00-685-9891
FSC: 5920
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY CONTACT
body_styleSIDE BARRIER TYPE
body_length3.125 INCHES NOMINAL IN
overall_width1.688 INCHES MAXIMUM IN
base_thickness0.290 INCHES NOMINAL IN
overall_height0.594 INCHES NOMINAL IN
overall_length3.125 INCHES NOMINAL IN
surface_treatmentSILVER CONTACT
mounting_hole_styleIRREGULARLY SPACED
mounting_hole_diameter0.205 INCHES NOMINAL IN
mounting_hole_quantity2
accommodated_fuse_width0.180 INCHES NOMINAL IN
NSN5920-00-685-9891
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FUSEHOLDER,BLOCK TITLE COMPONENT PN AS53731 MFR FUSEHOLDER,BLOCK
KEY FEATURES
•
MOUNTING HOLE QUANTITY: 2
•
ACCOMMODATED FUSE LENGTH: 2.000 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-S-365 FED SPEC SINGLE TREATMENT RESPONSE CONTACT
•
BODY LENGTH: 3.125 INCHES NOMINAL IN
•
TERMINAL TYPE AND QUANTITY: 2 SCREW
•
SURFACE TREATMENT: SILVER CONTACT
•
ACCOMMODATED FUSE WIDTH: 0.180 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.688 INCHES MAXIMUM IN
MOUNTING HOLE QUANTITY2
ACCOMMODATED FUSE LENGTH2.000 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-S-365 FED SPEC SINGLE TREATMENT RESPONSE CONTACT
BODY LENGTH3.125 INCHES NOMINAL IN
TERMINAL TYPE AND QUANTITY2 SCREW
SURFACE TREATMENTSILVER CONTACT
ACCOMMODATED FUSE WIDTH0.180 INCHES NOMINAL IN
MATERIALCOPPER ALLOY CONTACT
TEST DATA DOCUMENT81349-MIL-F-5378 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
T2761Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
121Interchangeable
interchangeable cross-reference
interchangeable
FAS7-1Interchangeable
interchangeable cross-reference
interchangeable
5325002629127Interchangeable
interchangeable cross-reference
interchangeable
EA72732Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS53731?
AS53731 is a FUSEHOLDER,BLOCK. It is classified as a MRO (MRO_GENERAL).
What parts can replace AS53731?
There are 27 known substitutes for AS53731: T2761, QQ-A-200/3, 121 and 24 more. Substitute compatibility should be verified for your specific system.
Is AS53731 still available?
AS53731 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026