PartsTable
Technical Data Sheet
Download PDF

B3-12 — INSIGNIA,RANK,OFFICER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B3-12: INSIGNIA,RANK,OFFICER.

The INSIGNIA,RANK,OFFICER is a the manufacturer industrial component. Key specifications include material: CERAMIC ENCLOSURE, construction: ONE-PIECE, overall_width: 2.625 INCHES NOMINAL IN, fiber_material: RAYON CHEVRON, overall_length: 4.375 INCHES NOMINAL IN, user_designator: ENLISTED PERSONNEL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-495-4283, 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
B3-12
NSN: 5330-00-495-4283
NIINs: 004954283, 009506269, 010723386, 014560137, 015591336, 015593645, 016886865, 016887486
FSC: 5330 — Packing and Gasket Materials
CAGE: 26433 — PARKER HANNIFIN CORP DBA PNEUTRONICS (USA)
SPECIFICATIONS
materialCERAMIC ENCLOSURE
constructionONE-PIECE
overall_width2.625 INCHES NOMINAL IN
fiber_materialRAYON CHEVRON
overall_length4.375 INCHES NOMINAL IN
user_designatorENLISTED PERSONNEL
outside_diameter0.623 INCHES NOMINAL IN
size_designationLARGE
special_featuresFIBER MATERIAL, POLYESTER/COTTON, COLORS, MIDNIGHT BLUE AND GOLDENLIGHT
style_designatorCIRCULAR
aperture_diameter0.503 INCHES NOMINAL IN
attachment_methodSEW-ON
NSN5330-00-495-4283
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B3-12 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 THICKNESS: 0.031 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-6183,TY 1 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE CORNER RADIUS: 0.281 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-6183,TY 1 MIL SPEC ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH2.438 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH2.438 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.281 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
751 859Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy B3-12?
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 B3-12?
B3-12 is a INSIGNIA,RANK,OFFICER.
What parts can replace B3-12?
There is 1 known substitute for B3-12: 751 859. Substitute compatibility should be verified for your specific system.
What is the NSN for B3-12?
B3-12 is cataloged in the U.S. Government catalog under NSN 5330-00-495-4283. 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 — B3-12

✓ 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.