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PartsTable / COMPONENT / G-228 (CROSBY G ROUP)
G-228 (CROSBY G ROUP) ✓ 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 G-228 (CROSBY G ROUP) is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-188-0331, 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
G-228 (CROSBY G ROUP)
NSN: 5340-00-188-0331
FSC: 5340
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part NumberG-228 (CROSBY G ROUP)
NSN5340-00-188-0331
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: G-228 (CROSBY G ROUP) 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
•
LOCKING DEVICE TYPE: NUT
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) BODY
•
FORK WIDTH: 0.625 INCHES NOMINAL IN
•
THREAD CLASS: 1A BODY A
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
•
BODY LENGTH: 7.500 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 7 CLASS AND 1 FORM AND 1 TYPE
TECHNICAL CHARACTERISTICS (FLIS)
LOCKING DEVICE TYPENUT
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) BODY
FORK WIDTH0.625 INCHES NOMINAL IN
THREAD CLASS1A BODY A
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC OVERALL
BODY LENGTH7.500 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA7 CLASS AND 1 FORM AND 1 TYPE
TAKE-UP DISTANCE6.000 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.500 INCHES BODY IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
ASTM F 1145-5Upgraded Successor
successor cross-reference
successor
FF-T-791Upgraded Successor
successor cross-reference
successor
11157-1-64Upgraded Successor
successor cross-reference
successor
ASTM-F1145-I1B 1/2X9Upgraded Successor
successor cross-reference
successor
S-2510-1/2X9Upgraded Successor
successor cross-reference
successor
MS27954-5Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G-228 (CROSBY G ROUP)?
G-228 (CROSBY G ROUP) is a G-228 (CROSBY G ROUP).
What parts can replace G-228 (CROSBY G ROUP)?
There are 16 known substitutes for G-228 (CROSBY G ROUP): ASTM F 1145-5, FF-T-791, 11157-1-64 and 13 more. Substitute compatibility should be verified for your specific system.
Is G-228 (CROSBY G ROUP) still available?
G-228 (CROSBY G ROUP) 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