PartsTable
Technical Data Sheet
SIZE 4 ✓ 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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include color: BLACK, material: PLASTIC CELLULOSE ACETATE, design_type: NICKEL-SILVER CORE, PADDLE, overall_width: 8.0 MILLIMETERS NOMINAL MM, overall_length: 4.000 INCHES NOMINAL IN, inside_diameter: 5.6 MILLIMETERS MINIMUM AND 16.0 MILLIMETERS MAXIMUM MM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-292-2967, 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
SIZE 4
NSN: 5340-00-292-2967
FSC: 5340
CAGE: 95760 — PROTECTIVE CLOSURES CO INC (USA)
SPECIFICATIONS
colorBLACK
materialPLASTIC CELLULOSE ACETATE
design_typeNICKEL-SILVER CORE, PADDLE
overall_width8.0 MILLIMETERS NOMINAL MM
overall_length4.000 INCHES NOMINAL IN
inside_diameter5.6 MILLIMETERS MINIMUM AND 16.0 MILLIMETERS MAXIMUM MM
special_featuresCONSISTS OF ONE LEFT AND ONE RIGHT TEMPLE; 7 BARREL HINGES
style_designatorWIRE
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
end_item_identificationMRAP BUFFALO MK2A2
part_name_assigned_by_controlling_agencyTEMPLE SPECTACLE PLASTIC BLACK 4" NOMINAL LENGTH PADDLE TYPE
NSN5340-00-292-2967
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SIZE 4 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: PLASTIC
OPEN END INSIDE DIAMETER: 0.422 INCHES NOMINAL IN
LENGTH UNDER SHOULDER: 0.375 INCHES NOMINAL IN
CLOSED END OVERALL DIAMETER: 0.419 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC
OPEN END INSIDE DIAMETER0.422 INCHES NOMINAL IN
LENGTH UNDER SHOULDER0.375 INCHES NOMINAL IN
CLOSED END OVERALL DIAMETER0.419 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
MILC52078Upgraded Successor
successor cross-reference
successor
RU51089Upgraded Successor
successor cross-reference
successor
28901-17Upgraded Successor
successor cross-reference
successor
21Upgraded Successor
successor cross-reference
successor
MIL-C-5501Upgraded Successor
successor cross-reference
successor
4Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SIZE 4?
SIZE 4 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace SIZE 4?
There are 26 known substitutes for SIZE 4: MILC52078, RU51089, 28901-17 and 23 more. Substitute compatibility should be verified for your specific system.
Is SIZE 4 still available?
SIZE 4 is currently cancelled.
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