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500166 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The SHOCK ABSORBER,DIRECT ACTION is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.049 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN, head_diameter: 0.208 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN, thread_length: 0.282 INCHES NOMINAL IN, screw_material: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 303SE, fastener_length: 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-286-6846, 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
500166
NSN: 5330-00-286-6846
FSC: 5330
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.049 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
head_diameter0.208 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
thread_length0.282 INCHES NOMINAL IN
screw_materialSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 303SE
fastener_length0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.138 INCHES IN
screw_surface_treatmentPASSIVATE
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5330-00-286-6846
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 500166 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
•
SEALING ELEMENT STYLE: VERTICAL-ANGULAR
•
ACCOMMODATED SHAFT DIAMETER: 2.625 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
•
HOUSING BORE DIAMETER: 3.622 INCHES MINIMUM AND 3.624 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1600 FEET PER MINUTE FT
•
SEAL WIDTH: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
•
CASE STYLE: SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEVERTICAL-ANGULAR
ACCOMMODATED SHAFT DIAMETER2.625 INCHES NOMINAL IN
MATERIALSTEEL CASE
HOUSING BORE DIAMETER3.622 INCHES MINIMUM AND 3.624 INCHES MAXIMUM IN
MATERIALWOOL OR LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1600 FEET PER MINUTE FT
SEAL WIDTH0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
112Interchangeable
interchangeable cross-reference
interchangeable
15346Interchangeable
interchangeable cross-reference
interchangeable
B94.9 10-32 UNF HS G H1Interchangeable
interchangeable cross-reference
interchangeable
5-131-04-024-00Interchangeable
interchangeable cross-reference
interchangeable
AMS-P-5510Interchangeable
interchangeable cross-reference
interchangeable
0921206-9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 500166?
500166 is a SHOCK ABSORBER,DIRECT ACTION.
What parts can replace 500166?
There are 20 known substitutes for 500166: 112, 15346, B94.9 10-32 UNF HS G H1 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 500166?
500166 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-286-6846. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026