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Technical Data Sheet
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475/3 ✓ 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 475/3 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-664-7026, 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
475/3
NSN: 5340-00-664-7026
FSC: 5340
CAGE: 1DV78 — PROGRESSIVE HARDWARE CO., INC. DBA PROGRESSIVE HARDWARE CO INC (USA)
SPECIFICATIONS
Part Number475/3
NSN5340-00-664-7026
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 475/3 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: COPPER ALLOY KNOB
•
FACE SHAPE: FLAT
•
BOLT TYPE: REGULAR BEVEL
•
LENGTH: 2.000 INCHES NOMINAL IN
•
KNOB QUANTITY: 2
•
DEPARTURE FROM CITED DESIGNATOR: LOCKSET F75
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY KNOB
FACE SHAPEFLAT
SPECIAL FEATURESSURFACE TREATMENT - BRASS,BRIGHT
BOLT TYPEREGULAR BEVEL
LENGTH2.000 INCHES NOMINAL IN
KNOB QUANTITY2
MATERIALCOPPER ALLOY AND STEEL CASE
DEPARTURE FROM CITED DESIGNATORLOCKSET F75
FEATURES PROVIDEDHANDLE
DESIGN TYPELATCH BOLT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
FFH106-160E-4Upgraded Successor
successor cross-reference
successor
FF-H-106Upgraded Successor
successor cross-reference
successor
A55PDPLY28Upgraded Successor
successor cross-reference
successor
B260PUpgraded Successor
successor cross-reference
successor
BR260Upgraded Successor
successor cross-reference
successor
FFH106-161PUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 475/3?
475/3 is a 475/3.
What parts can replace 475/3?
There are 21 known substitutes for 475/3: FFH106-160E-4, FF-H-106, A55PDPLY28 and 18 more. Substitute compatibility should be verified for your specific system.
Is 475/3 still available?
475/3 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026