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PartsTable / COMPONENT / GS179M5
GS179M5 ✓ 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

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) JACKET, construction: SOLID, cross-sectional_width: 1.120 INCHES NOMINAL IN, cross-sectional_height: 0.250 INCHES NOMINAL IN, cross-sectional_thickness: 0.034 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN, cross-sectional_shape_style: HOLLOW BULB. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-005-0028, 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
GS179M5
NSN: 5330-00-005-0028
FSC: 5330
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) JACKET
constructionSOLID
cross-sectional_width1.120 INCHES NOMINAL IN
cross-sectional_height0.250 INCHES NOMINAL IN
cross-sectional_thickness0.034 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
cross-sectional_shape_styleHOLLOW BULB
cross_section_inside_diameter0.170 INCHES NOMINAL IN
material_document_and_classificationZZ-R-765 CL 2 GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE CORE
NSN5330-00-005-0028
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GS179M5 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 DOCUMENT AND CLASSIFICATION: ZZ-R-765 CL 2 GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE CORE
•
CROSS SECTION INSIDE DIAMETER: 0.170 INCHES NOMINAL IN
•
CONSTRUCTION: SOLID
•
CROSS-SECTIONAL WIDTH: 1.120 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: HOLLOW BULB
•
MATERIAL: RUBBER SILICONE CLASS Q CORE
•
CROSS-SECTIONAL HEIGHT: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONZZ-R-765 CL 2 GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE CORE
CROSS SECTION INSIDE DIAMETER0.170 INCHES NOMINAL IN
CONSTRUCTIONSOLID
CROSS-SECTIONAL WIDTH1.120 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEHOLLOW BULB
MATERIALRUBBER SILICONE CLASS Q CORE
MATERIALPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) JACKET
CROSS-SECTIONAL HEIGHT0.250 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.034 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
7114Interchangeable
interchangeable cross-reference
interchangeable
8575-23-2Interchangeable
interchangeable cross-reference
interchangeable
026-08103Interchangeable
interchangeable cross-reference
interchangeable
40602Interchangeable
interchangeable cross-reference
interchangeable
071142Interchangeable
interchangeable cross-reference
interchangeable
4H90238-101AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GS179M5?
GS179M5 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What parts can replace GS179M5?
There are 10 known substitutes for GS179M5: 7114, 8575-23-2, 026-08103 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GS179M5?
GS179M5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-005-0028. 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