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166638 — CABLE ASSEMBLY,SPECIAL PURPOSE,E

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

166638: CABLE ASSEMBLY,SPECIAL PURPOSE,E.

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include diameter: 0.080 INCHES NOMINAL IN, material: ALUMINUM ALLOY 2024 OVERALL, overall_width: 0.310 INCHES NOMINAL IN, overall_length: 0.750 INCHES NOMINAL IN, tongue_hole_type: ROUND, UNTHREADED, loop_inside_diameter: 0.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-229-8312, 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
166638
NSN: 5340-01-229-8312
NIINs: 012298312, 015495295
FSC: 5340 — Hardware, Commercial
CAGE: 10138 — ASTRONAUTICS CORPORATION OF AMERICA (USA)
SPECIFICATIONS
diameter0.080 INCHES NOMINAL IN
materialALUMINUM ALLOY 2024 OVERALL
overall_width0.310 INCHES NOMINAL IN
overall_length0.750 INCHES NOMINAL IN
tongue_hole_typeROUND, UNTHREADED
loop_inside_diameter0.375 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/4,T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
distance_from_loop_center_to_tongue_end0.375 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole0.300 INCHES NOMINAL IN
NSN5340-01-229-8312
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 166638 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/4,T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.080 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.375 INCHES NOMINAL IN
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.300 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 2024 OVERALL
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4,T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.080 INCHES NOMINAL IN
OVERALL LENGTH0.750 INCHES NOMINAL IN
OVERALL WIDTH0.310 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.375 INCHES NOMINAL IN
TONGUE HOLE TYPEROUND, UNTHREADED
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.300 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 2024 OVERALL
LOOP INSIDE DIAMETER0.375 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
128369Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 166638?
166638 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 166638?
There is 1 known substitute for 166638: 128369. Substitute compatibility should be verified for your specific system.
What is the NSN for 166638?
166638 is cataloged in the U.S. Government catalog under NSN 5340-01-229-8312. 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.