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1091-55 — DUMMY LOAD,ELECTRICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1091-55: DUMMY LOAD,ELECTRICAL.

The DUMMY LOAD,ELECTRICAL is a the manufacturer industrial component. Key specifications include diameter: 0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN, material: STEEL OVERALL, point_type: EXTENDED PRONG SQUARE CUT, special_features: TNC CONNECTOR TNC OPEN F 18 GHZ GHz, style_designator: STANDARD, underloop_length: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-377-3052, 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
1091-55
NSN: 5330-00-377-3052
NIINs: 003773052, 008392325, 015453537
FSC: 5330 — Packing and Gasket Materials
CAGE: 04627 — HYSTER-YALE GROUP, INC. DIV HYSTER-YALE MATERIALS HANDLING (USA)
SPECIFICATIONS
diameter0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
materialSTEEL OVERALL
point_typeEXTENDED PRONG SQUARE CUT
special_featuresTNC CONNECTOR TNC OPEN F 18 GHZ GHz
style_designatorSTANDARD
underloop_length0.500 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
bearing_surface_width0.500 INCHES NOMINAL IN
end_item_identificationMRAP - COUGAR; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
cross-sectional_thickness0.438 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationASTM E30 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-377-3052
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1091-55 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
•
CROSS-SECTIONAL THICKNESS: 0.438 INCHES NOMINAL IN
•
BEARING SURFACE WIDTH: 0.500 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL: CORK OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.438 INCHES NOMINAL IN
BEARING SURFACE WIDTH0.500 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALCORK OVERALL
SUBSTITUTES & CROSS-REFERENCES 8
5755Reference document
Same NSN cross-reference
Reference document — Secondary reference
35626Reference document
Same NSN cross-reference
Reference document — Secondary reference
Y400B237Reference document
Same NSN cross-reference
Reference document — Secondary reference
09-5755Reference document
Same NSN cross-reference
Reference document — Secondary reference
864131Reference document
Same NSN cross-reference
Reference document — Secondary reference
850561Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1091-55?
1091-55 is a DUMMY LOAD,ELECTRICAL.
What parts can replace 1091-55?
There are 8 known substitutes for 1091-55: 5755, 35626, Y400B237 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1091-55?
1091-55 is cataloged in the U.S. Government catalog under NSN 5330-00-377-3052. 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.