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3-11874-4 — BACKSHELL,ELECTRICAL CONNECTOR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3-11874-4: BACKSHELL,ELECTRICAL CONNECTOR.

The BACKSHELL,ELECTRICAL CONNECTOR is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075, fsc_application_data: FUSELAGE,AIRFRAME, securing_device_type: THREADED FASTENER, end_item_identification: CONTROL ASSEMBLY GENERATOR, mounting_opening_shape_style: UNTHREADED HOLE, material_document_and_classification: QQ-A-250/12 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-768-1079, 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
3-11874-4
NSN: 5340-00-768-1079
NIINs: 007681079, 016970667
FSC: 5340 — Hardware, Commercial
CAGE: 79U29 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075
fsc_application_dataFUSELAGE,AIRFRAME
securing_device_typeTHREADED FASTENER
end_item_identificationCONTROL ASSEMBLY GENERATOR
mounting_opening_shape_styleUNTHREADED HOLE
material_document_and_classificationQQ-A-250/12 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-768-1079
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-11874-4 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FSC APPLICATION DATA: FUSELAGE,AIRFRAME
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/12 FED SPEC SINGLE MATERIAL RESPONSE
•
SECURING DEVICE TYPE: THREADED FASTENER
•
MATERIAL: ALUMINUM ALLOY 7075
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAFUSELAGE,AIRFRAME
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/12 FED SPEC SINGLE MATERIAL RESPONSE
SECURING DEVICE TYPETHREADED FASTENER
MATERIALALUMINUM ALLOY 7075
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 3-11874-4?
3-11874-4 is a BACKSHELL,ELECTRICAL CONNECTOR.
What is the NSN for 3-11874-4?
3-11874-4 is cataloged in the U.S. Government catalog under NSN 5340-00-768-1079. 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.