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951221-1 — BACKSHELL,ELECTRICAL CONNECTOR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

951221-1: BACKSHELL,ELECTRICAL CONNECTOR.

The BACKSHELL,ELECTRICAL CONNECTOR is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, thread_class: 2B, overall_length: 1.500 INCHES MAXIMUM IN, overall_diameter: 0.688 INCHES NOMINAL IN, size_designation: 12, style_designator: STRAIGHT TYPE. This part is cataloged in the U.S.

Government catalog under NSN 5935-01-025-7267, 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
951221-1
NSN: 5935-01-025-7267
NIINs: 010257267, 014311204
FSC: 5935 — Connectors, Electrical
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
thread_class2B
overall_length1.500 INCHES MAXIMUM IN
overall_diameter0.688 INCHES NOMINAL IN
size_designation12
style_designatorSTRAIGHT TYPE
thread_directionRIGHT-HAND
surface_treatmentCADMIUM
nominal_thread_size0.688 INCHES IN
cable_opening_diameter0.875 INCHES NOMINAL IN
cable_opening_quantity1
thread_quantity_per_inch24
NSN5935-01-025-7267
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BACKSHELL,ELECTRICAL CONNECTOR TITLE COMPONENT PN 951221-1 MFR BACKSHELL,ELECTRICAL C
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 THREADED COUPLING
•
OVERALL DIAMETER: 0.688 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT TYPE
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.688 INCHES IN
•
CABLE OPENING QUANTITY: 1
•
SIZE DESIGNATION: 12
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY1 THREADED COUPLING
OVERALL DIAMETER0.688 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT TYPE
OVERALL LENGTH1.500 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.688 INCHES IN
CABLE OPENING QUANTITY1
SIZE DESIGNATION12
SURFACE TREATMENTCADMIUM
THREAD CLASS2B
SUBSTITUTES & CROSS-REFERENCES 1
2221-12037-303Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 951221-1?
951221-1 is a BACKSHELL,ELECTRICAL CONNECTOR.
What parts can replace 951221-1?
There is 1 known substitute for 951221-1: 2221-12037-303. Substitute compatibility should be verified for your specific system.
What is the NSN for 951221-1?
951221-1 is cataloged in the U.S. Government catalog under NSN 5935-01-025-7267. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.