PartsTable
Technical Data Sheet
Download PDF

045-8307 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

045-8307: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, temp_rating: -40.0 CELSIUS AND 135.0 CELSIUS DEGC, hardness_rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM, special_features: O-RING;OPERATED BY OIL, center_hole_diameter: 3.974 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-273-7270, 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
045-8307
NSN: 5331-01-273-7270
FSC: 5331 — O-ring
CAGE: D7040 — TRELLEBORG SEALING SOLUTIONS GERMANY GMBH (DEU)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-40.0 CELSIUS AND 135.0 CELSIUS DEGC
hardness_rating65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
special_featuresO-RING;OPERATED BY OIL
center_hole_diameter3.974 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
end_item_identificationRB199MK101/103/104
material_document_and_classificationASTM D2000/SAE J200 2BG720B14B34E014EF21EA14 ASSN STD SINGLE MATERIAL RESPONSE
reference_number_differentiating_characteristicsAS DIFF BY SPEC K2617 HTE7300 PERFORMANCE RQMT TORNADO ACFT ENGINE MODEL RB199
NSN5331-01-273-7270
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 045-8307 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: -40.0 CELSIUS AND 135.0 CELSIUS DEGC
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
HARDNESS RATING: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000/SAE J200 2BG720B14B34E014EF21EA14 ASSN STD SINGLE MATERIAL RESPONSE
•
COLOR: BLACK
•
CENTER HOLE DIAMETER: 3.974 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
TEMP RATING-40.0 CELSIUS AND 135.0 CELSIUS DEGC
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
HARDNESS RATING65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000/SAE J200 2BG720B14B34E014EF21EA14 ASSN STD SINGLE MATERIAL RESPONSE
COLORBLACK
SPECIAL FEATURESO-RING;OPERATED BY OIL
CENTER HOLE DIAMETER3.974 INCHES MINIMUM AND 4.004 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONRB199MK101/103/104
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFF BY SPEC K2617 HTE7300 PERFORMANCE RQMT TORNADO ACFT ENGINE MODEL RB199
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 3
120R1 CLASS 1 SIZE 045Reference document
Same NSN cross-reference
Reference document — Secondary reference
PRP045-8307Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8307-045Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 045-8307?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 045-8307?
045-8307 is a O-RING.
What parts can replace 045-8307?
There are 3 known substitutes for 045-8307: 120R1 CLASS 1 SIZE 045, PRP045-8307, 8307-045. Substitute compatibility should be verified for your specific system.
What is the NSN for 045-8307?
045-8307 is cataloged in the U.S. Government catalog under NSN 5331-01-273-7270. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 045-8307

✓ 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.