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MS28774-028 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS28774-028: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include cut_type: DIAGONAL RETAINER, material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, joint_type: SCARF-PERIPHERAL RETAINER, peripheral_diameter: 1.502 INCHES NOMINAL IN, center_hole_diameter: 1.398 INCHES NOMINAL IN, cross-sectional_height: 0.052 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-814-2372, 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
MS28774-028
NSN: 5330-00-814-2372
NIINs: 008142372, 010603434, 010772613, 012038422
FSC: 5330 — Packing and Gasket Materials
CAGE: 79696 — MCCAIN UNIFORM CO INC (USA)
SPECIFICATIONS
cut_typeDIAGONAL RETAINER
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
joint_typeSCARF-PERIPHERAL RETAINER
peripheral_diameter1.502 INCHES NOMINAL IN
center_hole_diameter1.398 INCHES NOMINAL IN
cross-sectional_height0.052 INCHES NOMINAL IN
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-814-2372
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28774-028 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
•
CROSS-SECTIONAL HEIGHT: 0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
CUT TYPE: DIAGONAL OVERALL
•
PERIPHERAL DIAMETER: 1.502 INCHES MINIMUM AND 1.506 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.397 INCHES MINIMUM AND 1.399 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC TETRAFLUOROETHYLENE OVERALL
•
JOINT TYPE: SCARF-PERIPHERAL RETAINER
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
CUT TYPEDIAGONAL OVERALL
PERIPHERAL DIAMETER1.502 INCHES MINIMUM AND 1.506 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.397 INCHES MINIMUM AND 1.399 INCHES MAXIMUM IN
MATERIALPLASTIC TETRAFLUOROETHYLENE OVERALL
JOINT TYPESCARF-PERIPHERAL RETAINER
SUBSTITUTES & CROSS-REFERENCES 8
811-028Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5330PL0641830Reference document
Same NSN cross-reference
Reference document — Informative reference only
V3D10198 ITEM 27Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS28774-28Reference document
Same NSN cross-reference
Reference document — Secondary reference
910733Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MS28774Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS28774-028?
MS28774-028 is a RETAINER,PACKING.
What parts can replace MS28774-028?
There are 8 known substitutes for MS28774-028: 811-028, 5330PL0641830, V3D10198 ITEM 27 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS28774-028?
MS28774-028 is cataloged in the U.S. Government catalog under NSN 5330-00-814-2372. 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.