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MS28782-6 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS28782-6: 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 POLYTETRAFLUOROETHYLENE OVERALL, joint_type: SCARF-BUTT RETAINER, peripheral_diameter: 0.422 INCHES NOMINAL IN, center_hole_diameter: 0.312 INCHES NOMINAL IN, distance_between_ends: 0.032 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-641-0103, 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
MS28782-6
NSN: 5330-00-641-0103
NIINs: 006410103, 011982725, 013979980
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 POLYTETRAFLUOROETHYLENE OVERALL
joint_typeSCARF-BUTT RETAINER
peripheral_diameter0.422 INCHES NOMINAL IN
center_hole_diameter0.312 INCHES NOMINAL IN
distance_between_ends0.032 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
end_item_identificationVALVE B 1.50IPS
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
NSN5330-00-641-0103
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28782-6 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: SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE
•
ANGLE: 25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM
•
PERIPHERAL DIAMETER: 0.420 INCHES MINIMUM AND 0.424 INCHES MAXIMUM IN
•
DISTANCE BETWEEN ENDS: 0.032 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.312 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 CLASSIFICATIONSAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE
ANGLE25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM
PERIPHERAL DIAMETER0.420 INCHES MINIMUM AND 0.424 INCHES MAXIMUM IN
DISTANCE BETWEEN ENDS0.032 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.312 INCHES NOMINAL IN
END ITEM IDENTIFICATIONW/S: ENGINE, AIRCRAFT TF33-PW-102 (C-135E, EC-135H/K/P); CHILLED WATER A/C SYSTEMS; SONAR RUBBER DOMES (SRDS); ENGINE, AIRCRAFT TF33-P-3/5/9 (C/EC-135, B-52H); AIR COMPRESSORS, HIGH PRESSURE; SYSTEMS, JP-5 AVIATION FUELS; AIRCRAFT, C-2A (REPROCURED); ENGINE, AIRCRAFT, TF-33-P-7 (C-141A/B); AIRCRAFT, (AC-130H, MC-130H, EC-130E, HC-130) A
MATERIALPLASTIC TETRAFLUOROETHYLENE OVERALL
SUBSTITUTES & CROSS-REFERENCES 9
1279400Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS28782Reference document
Same NSN cross-reference
Reference document — Identification reference
5330006410103Reference document
Same NSN cross-reference
Reference document — Informative reference only
SR6144PC6Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5330PL1380424Reference document
Same NSN cross-reference
Reference document — Informative reference only
AS8791Reference 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 MS28782-6?
MS28782-6 is a RETAINER,PACKING.
What parts can replace MS28782-6?
There are 9 known substitutes for MS28782-6: 1279400, MS28782, 5330006410103 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS28782-6?
MS28782-6 is cataloged in the U.S. Government catalog under NSN 5330-00-641-0103. 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.