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Technical Data Sheet
PartsTable / O-RING / 30-007C-B IT 37
30-007C-B IT 37 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, temp_rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 4.980 INCHES MINIMUM AND 5.060 INCHES MAXIMUM IN, center_hole_diameter: 4.570 INCHES MINIMUM AND 4.630 INCHES MAXIMUM IN, elongation_percentage: 331 MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-101-6076, 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
30-007C-B IT 37
NSN: 5331-01-101-6076
FSC: 5331 — O-RING
CAGE: 1PQ32 — KONRAD MARINE INC DIV KONRAD MARINE (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A NOMINAL
outside_diameter4.980 INCHES MINIMUM AND 5.060 INCHES MAXIMUM IN
center_hole_diameter4.570 INCHES MINIMUM AND 4.630 INCHES MAXIMUM IN
elongation_percentage331 MAXIMUM
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5331-01-101-6076
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 30-007C-B IT 37 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
•
ELONGATION PERCENTAGE: 331 MAXIMUM
•
CENTER HOLE DIAMETER: 4.570 INCHES MINIMUM AND 4.630 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
TEMP RATING: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
OUTSIDE DIAMETER: 4.980 INCHES MINIMUM AND 5.060 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
ELONGATION PERCENTAGE331 MAXIMUM
CENTER HOLE DIAMETER4.570 INCHES MINIMUM AND 4.630 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
TEMP RATING-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
OUTSIDE DIAMETER4.980 INCHES MINIMUM AND 5.060 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
49369HInterchangeable
interchangeable cross-reference
interchangeable
482Interchangeable
interchangeable cross-reference
interchangeable
10290Interchangeable
interchangeable cross-reference
interchangeable
SL5255PC7Interchangeable
interchangeable cross-reference
interchangeable
SL5270PC6Interchangeable
interchangeable cross-reference
interchangeable
SL5256PC8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30-007C-B IT 37?
30-007C-B IT 37 is a O-RING.
What parts can replace 30-007C-B IT 37?
There are 18 known substitutes for 30-007C-B IT 37: 49369H, 482, 10290 and 15 more. Substitute compatibility should be verified for your specific system.
Is 30-007C-B IT 37 still available?
30-007C-B IT 37 is currently cancelled.
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Last verified: July 2026