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MS28772-339 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MS28772-339: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, temp_rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF, hardness_rating: 65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM OVERALL, peripheral_diameter: 3.645 INCHES NOMINAL IN, center_hole_diameter: 3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN, cross-sectional_height: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-726-3497, 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
MS28772-339
NSN: 5330-00-726-3497
FSC: 5330 — Packing and Gasket Materials
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
temp_rating-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
hardness_rating65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM OVERALL
peripheral_diameter3.645 INCHES NOMINAL IN
center_hole_diameter3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN
cross-sectional_height0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
cross-sectional_shape_styleDELTA
material_document_and_classificationMIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-726-3497
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS28772-339 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: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
•
HARDNESS RATING: 65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: DELTA
•
PERIPHERAL DIAMETER: 3.645 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
HARDNESS RATING65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEDELTA
PERIPHERAL DIAMETER3.645 INCHES NOMINAL IN
CENTER HOLE DIAMETER3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
PS1-30-5-339Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS28772Reference document
Same NSN cross-reference
Reference document — Secondary reference
1183-339Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SAE-AS28772Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
1446-339Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AS28772-339Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS28772-339?
MS28772-339 is a PACKING,PREFORMED.
What parts can replace MS28772-339?
There are 7 known substitutes for MS28772-339: PS1-30-5-339, AS28772, 1183-339 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS28772-339?
MS28772-339 is cataloged in the U.S. Government catalog under NSN 5330-00-726-3497. 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.