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A51B10004-26 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A51B10004-26: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) JACKET, temp_rating: -54.0 CELSIUS AND -54.0 CELSIUS AND 177.0 CELSIUS177.0 CELSIUS DEGC, construction: ONE-PIECEONE-PIECE, special_features: LENGTH IS 10 FEETLENGTH IS 10 FEET FT, cross-sectional_width: 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN, cross-sectional_height: 0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-228-9553, 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
A51B10004-26
NSN: 5330-01-228-9553
FSC: 5330 — Packing and Gasket Materials
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) JACKET
temp_rating-54.0 CELSIUS AND -54.0 CELSIUS AND 177.0 CELSIUS177.0 CELSIUS DEGC
constructionONE-PIECEONE-PIECE
special_featuresLENGTH IS 10 FEETLENGTH IS 10 FEET FT
cross-sectional_width1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN
cross-sectional_height0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN
cross-sectional_thickness0.060 INCHES NOMINAL0.060 INCHES NOMINAL IN
cross-sectional_shape_styleHOLLOW BULBHOLLOW BULB
cross_section_inside_diameter0.270 INCHES NOMINAL0.270 INCHES NOMINAL IN
material_document_and_classificationZZ-R-765 CLASS 11B GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE CORE
NSN5330-01-228-9553
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A51B10004-26 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
•
TEMP RATING: -54.0 CELSIUS AND -54.0 CELSIUS AND 177.0 CELSIUS177.0 CELSIUS DEGC
•
CROSS-SECTIONAL THICKNESS: 0.060 INCHES NOMINAL0.060 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN
•
CROSS-SECTIONAL WIDTH: 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ZZ-R-765 CLASS 11B GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE CORE
•
CROSS-SECTIONAL SHAPE STYLE: HOLLOW BULBHOLLOW BULB
•
CROSS SECTION INSIDE DIAMETER: 0.270 INCHES NOMINAL0.270 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
TEMP RATING-54.0 CELSIUS AND -54.0 CELSIUS AND 177.0 CELSIUS177.0 CELSIUS DEGC
CROSS-SECTIONAL THICKNESS0.060 INCHES NOMINAL0.060 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN
CROSS-SECTIONAL WIDTH1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONZZ-R-765 CLASS 11B GRADE 50 FED SPEC SINGLE MATERIAL RESPONSE CORE
CROSS-SECTIONAL SHAPE STYLEHOLLOW BULBHOLLOW BULB
CROSS SECTION INSIDE DIAMETER0.270 INCHES NOMINAL0.270 INCHES NOMINAL IN
SPECIAL FEATURESLENGTH IS 10 FEETLENGTH IS 10 FEET FT
MATERIALPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) JACKET
MATERIALRUBBER SILICONE CLASS Q CORE
SUBSTITUTES & CROSS-REFERENCES 2
GS179M9Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7093Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A51B10004-26?
A51B10004-26 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What parts can replace A51B10004-26?
There are 2 known substitutes for A51B10004-26: GS179M9, 7093. Substitute compatibility should be verified for your specific system.
What is the NSN for A51B10004-26?
A51B10004-26 is cataloged in the U.S. Government catalog under NSN 5330-01-228-9553. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.