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39355 — ATTENUATOR SUBASSEMBLY

✓ Government record, cited
Kensington · ORING SEAL
PRODUCT OVERVIEW

39355: ATTENUATOR SUBASSEMBLY.

The ATTENUATOR SUBASSEMBLY is a Kensington industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, nut_style: HEXAGON, nut_height: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_length: 2.450 INCHES MINIMUM AND 2.454 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-843-2749, 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
39355
NSN: 5330-00-843-2749
NIINs: 008432749, 010130584, 011320524, 012448060
FSC: 5330 — Packing and Gasket Materials
CAGE: 81795 — ALLIANZ SWEEPER COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
nut_styleHEXAGON
nut_height0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_length2.450 INCHES MINIMUM AND 2.454 INCHES MAXIMUM IN
overall_diameter2.120 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
nominal_thread_size0.138 INCHES IN
bearing_surface_typeFLAT
NSN5330-00-843-2749
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 39355 MFR: Kensington ⚠ 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
SUBSTITUTES & CROSS-REFERENCES 2
473242Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
450310PReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 39355?
39355 is a ATTENUATOR SUBASSEMBLY manufactured by Kensington.
What parts can replace 39355?
There are 2 known substitutes for 39355: 473242, 450310P. Substitute compatibility should be verified for your specific system.
What is the NSN for 39355?
39355 is cataloged in the U.S. Government catalog under NSN 5330-00-843-2749. 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.