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Technical Data Sheet
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179304 — Technical Data Sheet

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— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The 179304 is a the manufacturer industrial component. Key specifications include FSC APPLICATION DATA: TELETYPE AND FACSIMILE EQUIPMENT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-263-8028, 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
MRO→ MRO_GENERAL→ 179304
NSN: 5331-00-263-8028
FSC: 5331 — O-RING
CAGE: 91265 — PARKER-HANNIFIN CORPORATION DIV O-RING DIVISION (USA)
SPECIFICATIONS
FSC APPLICATION DATATELETYPE AND FACSIMILE EQUIPMENT
NSN5331-00-263-8028
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 179304 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: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
OUTSIDE DIAMETER: 0.484 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
END ITEM IDENTIFICATIONW/S: DISPENSER PTBL M33A1; MISSILE, TOMAHAWK; AIRCRAFT, AIRLIFTER C-17A; SUPPORT EQUIPMENT, B-1 AIRCRAFT; AIRCRAFT (AC-130H, MC-130H, EC-130E, HC-130); TORPEDO, MK 48; FIRE PUMPS; ENGINE, AIRCRAFT TF33-PW-102 (C-135, EC-135H/K/P); GUN, 5-IN./54 CAL, MK-42 & 45; ENGINE, AIRCRAFT TF33-P-3/5/9 (C/EC-135, B-52H) A
OUTSIDE DIAMETER0.484 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
8-6TRBTX-SInterchangeable
interchangeable cross-reference
interchangeable
9K3Interchangeable
interchangeable cross-reference
interchangeable
MS29512-04Interchangeable
interchangeable cross-reference
interchangeable
5331PL2083851Interchangeable
interchangeable cross-reference
interchangeable
MS29512-4Interchangeable
interchangeable cross-reference
interchangeable
MIS-13674/31Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 179304?
179304 is a 179304. It is classified as a MRO (MRO_GENERAL).
What parts can replace 179304?
There are 18 known substitutes for 179304: 8-6TRBTX-S, 9K3, MS29512-04 and 15 more. Substitute compatibility should be verified for your specific system.
Is 179304 still available?
179304 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: September 2026