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B-11SR27-70 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B-11SR27-70: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OVERALL, temp_rating: -15.0 CELSIUS AND 260.0 CELSIUS DEGC, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL, operating_medium: AIR OR FUEL, AROMATIC OR HIGH TEMPERATURE OR HYDRAULIC FLUID OR LUBRICANT, SILICONE, peripheral_diameter: 1.078 INCHES MINIMUM AND 1.112 INCHES MAXIMUM IN, center_hole_diameter: 0.858 INCHES MINIMUM AND 0.868 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-258-9149, 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
B-11SR27-70
NSN: 5330-01-258-9149
FSC: 5330 — Packing and Gasket Materials
CAGE: 95272 — STILLMAN SEAL CORPORATION DIV STILLMAN SEAL CORPERATION (USA)
SPECIFICATIONS
materialRUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM OVERALL
temp_rating-15.0 CELSIUS AND 260.0 CELSIUS DEGC
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
operating_mediumAIR OR FUEL, AROMATIC OR HIGH TEMPERATURE OR HYDRAULIC FLUID OR LUBRICANT, SILICONE
peripheral_diameter1.078 INCHES MINIMUM AND 1.112 INCHES MAXIMUM IN
center_hole_diameter0.858 INCHES MINIMUM AND 0.868 INCHES MAXIMUM IN
cross-sectional_height0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
functional_descriptionNON-STD SIZE TUBE FITTING BOSS APPL
cross-sectional_shape_styleO-RING
specification/standard_data96906-MS9387 GOVERNMENT STANDARD
reference_data_and_literatureMATL ASTM D2000/SAE J200 4HK715A1-10B37C12C20EF31EO78
cross_section_outside_diameter0.053 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
NSN5330-01-258-9149
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B-11SR27-70 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: -15.0 CELSIUS AND 260.0 CELSIUS DEGC
•
OPERATING MEDIUM: AIR OR FUEL, AROMATIC OR HIGH TEMPERATURE OR HYDRAULIC FLUID OR LUBRICANT, SILICONE
•
CROSS-SECTIONAL HEIGHT: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
RELATIONSHIP TO SIMILAR EQUIPMENT: SIMILAR TO NSN 5330-00-165-1975 AND AS3085-020 AND AS3209-020
•
HARDNESS RATING: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
•
REFERENCE DATA AND LITERATURE: MATL ASTM D2000/SAE J200 4HK715A1-10B37C12C20EF31EO78
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 7278/NONCURRENT/ ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: O-RING
TECHNICAL CHARACTERISTICS
TEMP RATING-15.0 CELSIUS AND 260.0 CELSIUS DEGC
OPERATING MEDIUMAIR OR FUEL, AROMATIC OR HIGH TEMPERATURE OR HYDRAULIC FLUID OR LUBRICANT, SILICONE
CROSS-SECTIONAL HEIGHT0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
RELATIONSHIP TO SIMILAR EQUIPMENTSIMILAR TO NSN 5330-00-165-1975 AND AS3085-020 AND AS3209-020
HARDNESS RATING70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
REFERENCE DATA AND LITERATUREMATL ASTM D2000/SAE J200 4HK715A1-10B37C12C20EF31EO78
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 7278/NONCURRENT/ ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEO-RING
SPECIFICATION/STANDARD DATA96906-MS9387 GOVERNMENT STANDARD
PERIPHERAL DIAMETER1.078 INCHES MINIMUM AND 1.112 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 5
MS9387-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
911-19357Reference document
Same NSN cross-reference
Reference document — Secondary reference
PRP911-19357Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
V0747 3-911Reference document
Same NSN cross-reference
Reference document — Secondary reference
3-911 V747-75Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B-11SR27-70?
B-11SR27-70 is a PACKING,PREFORMED.
What parts can replace B-11SR27-70?
There are 5 known substitutes for B-11SR27-70: MS9387-1, 911-19357, PRP911-19357 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B-11SR27-70?
B-11SR27-70 is cataloged in the U.S. Government catalog under NSN 5330-01-258-9149. 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.