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MS28782 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS28782: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include angle: 25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM, material: PLASTIC EPOXY AND PAPER OVERALL, joint_type: SCARF-BUTT RETAINER, peripheral_diameter: 1.552 INCHES MINIMUM AND 1.556 INCHES MAXIMUM IN, center_hole_diameter: 1.312 INCHES NOMINAL IN, distance_between_ends: 0.047 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-171-5042, 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
MS28782
NSN: 5330-00-171-5042
NIINs: 001715042, 001715044, 001715045, 001715047, 001715048, 001715050, 001715052, 001715053, 001715062, 001715063, 001715064, 001715065, 001715066, 001715067, 001715068, 001715069, 001715070, 001715071, 001715073, 001715074, 001715075, 001715096, 001715097, 001715098, 001715102, 001715752, 001715778, 001715779, 001715885, 001715886, 001715887, 001715888, 001715889, 001715890, 001715894, 001715895, 001715896, 001715897, 001715898, 001715899, 001715900, 001715901, 001715902, 001715903, 001715904, 001715905, 001715906, 001715908, 001715913, 001716694, 001716695, 001716746, 001716747, 001716748, 001716749, 001716750, 001716751, 001716752, 001716753, 001716754, 001716755, 001716756, 001716757, 001716758, 001716759, 001716760, 001716762, 001716763, 001716764, 001716765, 001716767, 001716768, 001716769, 001716770, 001717346, 001719223, 001719224, 001719225, 001719227, 003292524, 005592363, 006409717, 006410102, 006410103, 006410225, 006411571, 006637035, 006637151, 006637152, 010433468, 010714634, 011692106, 011982725, 013979980, 014118946, 015282473
FSC: 5330 — Packing and Gasket Materials
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
angle25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM
materialPLASTIC EPOXY AND PAPER OVERALL
joint_typeSCARF-BUTT RETAINER
peripheral_diameter1.552 INCHES MINIMUM AND 1.556 INCHES MAXIMUM IN
center_hole_diameter1.312 INCHES NOMINAL IN
distance_between_ends0.047 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
cross-sectional_height0.075 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN
cross-sectional_thickness0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
cross-sectional_shape_styleSQUARE
departure_from_cited_documentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
criticality_code_justificationZZZW
material_document_and_classificationSAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-171-5042
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28782 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 THICKNESS: 0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.075 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE
•
ANGLE: 25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM
•
PERIPHERAL DIAMETER: 0.483 INCHES MINIMUM AND 0.487 INCHES MAXIMUM IN
•
DISTANCE BETWEEN ENDS: 0.032 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.075 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE
ANGLE25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM
PERIPHERAL DIAMETER0.483 INCHES MINIMUM AND 0.487 INCHES MAXIMUM IN
DISTANCE BETWEEN ENDS0.032 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.375 INCHES NOMINAL IN
MATERIALPLASTIC TETRAFLUOROETHYLENE OVERALL
JOINT TYPESCARF-BUTT RETAINER
SUBSTITUTES & CROSS-REFERENCES 9
21817 FIND 46Reference document
Same NSN cross-reference
Reference document — Secondary reference
SR-6144-7Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
38012BReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AS8791Reference document
Same NSN cross-reference
Reference document — Secondary reference
384-S-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
21805-78062 FIND 23Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS28782?
MS28782 is a RETAINER,PACKING.
What parts can replace MS28782?
There are 9 known substitutes for MS28782: 21817 FIND 46, SR-6144-7, 38012B and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS28782?
MS28782 is cataloged in the U.S. Government catalog under NSN 5330-00-171-5042. This indicates validated use in U.S. government and defense supply chains.
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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.