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KRP203321V-ORING — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

KRP203321V-ORING: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, outside_diameter: 1.377 INCHES NOMINAL IN, special_features: THICKNESS 0.039 INCHES IN, center_hole_diameter: 1.299 INCHES NOMINAL IN, cross-sectional_height: 1.299 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: O-RING. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-687-8523, 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
KRP203321V-ORING
NSN: 5331-01-687-8523
FSC: 5331 — O-ring
CAGE: 50632 — KAMATICS CORPORATION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter1.377 INCHES NOMINAL IN
special_featuresTHICKNESS 0.039 INCHES IN
center_hole_diameter1.299 INCHES NOMINAL IN
cross-sectional_height1.299 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyO-RING
NSN5331-01-687-8523
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: KRP203321V-ORING 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 HEIGHT: 1.299 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.377 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.299 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT1.299 INCHES NOMINAL IN
OUTSIDE DIAMETER1.377 INCHES NOMINAL IN
SPECIAL FEATURESTHICKNESS 0.039 INCHES IN
CENTER HOLE DIAMETER1.299 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYO-RING
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is KRP203321V-ORING?
KRP203321V-ORING is a O-RING.
What is the NSN for KRP203321V-ORING?
KRP203321V-ORING is cataloged in the U.S. Government catalog under NSN 5331-01-687-8523. 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.