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G7 ✓ 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 CRYSTAL UNIT,QUARTZ is a the manufacturer industrial component. Key specifications include shackle: INCLUDED, diameter: 0.810 INCHES NOMINAL IN, material: STEEL, fluke_hole: INCLUDED, body_length: 2.375 INCHES NOMINAL IN, temp_rating: 212.0 FAHRENHEIT DEGF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-057-3819, 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
G7
NSN: 5330-00-057-3819
FSC: 5330
CAGE: 44218 — NORWALK COMPRESEER COMPANY INC DBA NORWALK COMPRESSOR COMPANY (USA)
SPECIFICATIONS
shackleINCLUDED
diameter0.810 INCHES NOMINAL IN
materialSTEEL
fluke_holeINCLUDED
body_length2.375 INCHES NOMINAL IN
temp_rating212.0 FAHRENHEIT DEGF
constructionTWO-PIECE
pilot_length0.031 INCHES NOMINAL IN
stock_designREMOVABLE
hole_diameter2.36 INCHES NOMINAL SINGLE HOLE IN
overall_width2.91 INCHES NOMINAL IN
alignment_typeRIGID
NSN5330-00-057-3819
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: G7 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
•
SUPPLEMENTARY FEATURES: CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
TECHNICAL CHARACTERISTICS (FLIS)
SUPPLEMENTARY FEATURESCROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
SPECIAL FEATURESSTYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
G7Interchangeable
interchangeable cross-reference
interchangeable
3Interchangeable
interchangeable cross-reference
interchangeable
FWR-3C-7Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-5049CInterchangeable
interchangeable cross-reference
interchangeable
AN6231A7Interchangeable
interchangeable cross-reference
interchangeable
165-00605Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G7?
G7 is a CRYSTAL UNIT,QUARTZ.
What parts can replace G7?
There are 9 known substitutes for G7: G7, 3, FWR-3C-7 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for G7?
G7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-057-3819. 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