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B5981 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B5981: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, aperture_width: 1.875 INCHES NOMINAL IN, aperture_length: 7.188 INCHES NOMINAL IN, style_designator: PEAR, fsc_application_data: LIGHTS,SPECIAL PURPOSE, bearing_surface_width: 0.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-563-7146, 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
B5981
NSN: 5330-00-563-7146
FSC: 5330 — Packing and Gasket Materials
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
aperture_width1.875 INCHES NOMINAL IN
aperture_length7.188 INCHES NOMINAL IN
style_designatorPEAR
fsc_application_dataLIGHTS,SPECIAL PURPOSE
bearing_surface_width0.188 INCHES NOMINAL IN
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-563-7146
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B5981 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
•
FSC APPLICATION DATA: LIGHTS,SPECIAL PURPOSE
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PEAR
•
BEARING SURFACE WIDTH: 0.188 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE WIDTH: 1.875 INCHES NOMINAL IN
•
APERTURE LENGTH: 7.188 INCHES NOMINAL IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATALIGHTS,SPECIAL PURPOSE
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
STYLE DESIGNATORPEAR
BEARING SURFACE WIDTH0.188 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE WIDTH1.875 INCHES NOMINAL IN
APERTURE LENGTH7.188 INCHES NOMINAL IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B5981?
B5981 is a GASKET.
What is the NSN for B5981?
B5981 is cataloged in the U.S. Government catalog under NSN 5330-00-563-7146. This indicates validated use in U.S. government and defense supply chains.
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