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311020 — BACKSHELL,ELECTRICAL CONNECTOR

✓ Government record, cited
Legrand · MRO · MRO_GENERAL
PRODUCT OVERVIEW

311020: BACKSHELL,ELECTRICAL CONNECTOR.

The BACKSHELL,ELECTRICAL CONNECTOR is a Legrand industrial component. Key specifications include material: GLASS CASE, seal_type: PREFORMED PACKING, body_style: TUBE TYPE, thread_class: 2B, overall_length: 1.410 INCHES MAXIMUM IN, overall_diameter: 1.170 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5920-00-895-3270, 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→ 311020
NSN: 5920-00-895-3270
NIINs: 008953270, 010799918, 014698552
FSC: 5920 — Fuses, Arrestors, Absorbers, and Protectors
CAGE: 75915 — LITTELFUSE, INC. (USA)
SPECIFICATIONS
materialGLASS CASE
seal_typePREFORMED PACKING
body_styleTUBE TYPE
thread_class2B
overall_length1.410 INCHES MAXIMUM IN
overall_diameter1.170 INCHES MAXIMUM IN
size_designation16
style_designatorSTRAIGHT SHAPE INCREASER TYPE
thread_directionRIGHT-HAND
features_providedNONRENEWABLE FUSIBLE ELEMENT
surface_treatmentCADMIUM
nominal_thread_size0.938 INCHES IN
NSN5920-00-895-3270
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Legrand BACKSHELL,ELECTRICAL CONNECTOR TITLE COMPONENT PN 311020 MFR Legrand BACKSHELL,ELECTRICAL C
KEY FEATURES
•
CONTINUOUS CURRENT RATING IN AMPS: 20.000
•
BODY STYLE: TUBE TYPE
•
OVERALL DIAMETER: 0.250 INCHES NOMINAL IN
•
INTERRUPTION INDICATOR METHOD: VISIBLE ELEMENT
•
FEATURES PROVIDED: NONRENEWABLE FUSIBLE ELEMENT
•
MAXIMUM VOLTAGE RATING IN VOLTS: 32.0 AC AND 32.0 DC
•
MATERIAL: GLASS CASE
TECHNICAL CHARACTERISTICS
CONTINUOUS CURRENT RATING IN AMPS20.000
BODY STYLETUBE TYPE
OVERALL DIAMETER0.250 INCHES NOMINAL IN
OVERALL LENGTH1.250 INCHES NOMINAL IN
INTERRUPTION INDICATOR METHODVISIBLE ELEMENT
FEATURES PROVIDEDNONRENEWABLE FUSIBLE ELEMENT
MAXIMUM VOLTAGE RATING IN VOLTS32.0 AC AND 32.0 DC
MATERIALGLASS CASE
CIRCUIT OVER-CURRENT INTERRUPTION TYPENORMAL INSTANTANEOUS
SUBSTITUTES & CROSS-REFERENCES 3
P1077Reference document
Same NSN cross-reference
Reference document — Secondary reference
HF2988Reference document
Same NSN cross-reference
Reference document — Secondary reference
307020Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 311020?
311020 is a BACKSHELL,ELECTRICAL CONNECTOR manufactured by Legrand. It is classified as a MRO (MRO_GENERAL).
What parts can replace 311020?
There are 3 known substitutes for 311020: P1077, HF2988, 307020. Substitute compatibility should be verified for your specific system.
What is the NSN for 311020?
311020 is cataloged in the U.S. Government catalog under NSN 5920-00-895-3270. 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.