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PartsTable / COMPONENT / MS28774-125
MS28774-125 ✓ 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 VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include cut_type: DIAGONAL OVERALL, material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, joint_type: SCARF-PERIPHERAL OVERALL, peripheral_diameter: 1.503 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN, center_hole_diameter: 1.331 INCHES MINIMUM AND 1.333 INCHES MAXIMUM IN, cross-sectional_height: 0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-819-4641, 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
MS28774-125
NSN: 5330-00-819-4641
FSC: 5330
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
cut_typeDIAGONAL OVERALL
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
joint_typeSCARF-PERIPHERAL OVERALL
peripheral_diameter1.503 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN
center_hole_diameter1.331 INCHES MINIMUM AND 1.333 INCHES MAXIMUM IN
cross-sectional_height0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
departure_from_cited_documentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
criticality_code_justificationZZZW
material_document_and_classificationAMS 3651 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-819-4641
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28774-125 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
•
JOINT TYPE: SCARF-PERIPHERAL RETAINER
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CUT TYPE: DIAGONAL OVERALL
•
MATERIAL: PLASTIC TETRAFLUOROETHYLENE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
CENTER HOLE DIAMETER: 1.331 INCHES MINIMUM AND 1.333 INCHES MAXIMUM IN
•
PERIPHERAL DIAMETER: 1.512 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
JOINT TYPESCARF-PERIPHERAL RETAINER
MATERIAL DOCUMENT AND CLASSIFICATIONSAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
CUT TYPEDIAGONAL OVERALL
MATERIALPLASTIC TETRAFLUOROETHYLENE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
CENTER HOLE DIAMETER1.331 INCHES MINIMUM AND 1.333 INCHES MAXIMUM IN
PERIPHERAL DIAMETER1.512 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
V3D10043 PIECE 17Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS8791Interchangeable
interchangeable cross-reference
interchangeable
52660-300 ITEM 23Interchangeable
interchangeable cross-reference
interchangeable
54360Interchangeable
interchangeable cross-reference
interchangeable
MS28774-125Interchangeable
interchangeable cross-reference
interchangeable
5330PL0799358Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS28774-125?
MS28774-125 is a VALVE,SAFETY RELIEF.
What parts can replace MS28774-125?
There are 8 known substitutes for MS28774-125: V3D10043 PIECE 17, SAE-AS8791, 52660-300 ITEM 23 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS28774-125?
MS28774-125 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-819-4641. 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