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D-3250 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

D-3250: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, ring_style: CONCENTRIC, inside_diameter: 3.250 INCHES NOMINAL IN, outside_diameter: 3.750 INCHES NOMINAL IN, features_provided: WEARING EDGES BEVELED, surface_treatment: UNABLE TO DECODE. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-483-1051, 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
D-3250
NSN: 5330-00-483-1051
NIINs: 004831051, 006851134, 013586637
FSC: 5330 — Packing and Gasket Materials
CAGE: 30781 — PARKER-HANNIFIN CORPORATION DIV ENGINEERED POLYMER SYSTEMS DIVISION (EPS) (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
ring_styleCONCENTRIC
inside_diameter3.250 INCHES NOMINAL IN
outside_diameter3.750 INCHES NOMINAL IN
features_providedWEARING EDGES BEVELED
surface_treatmentUNABLE TO DECODE
material_thickness0.359 INCHES NOMINAL IN
outer_edge_thickness0.239 INCHES NOMINAL IN
cross-sectional_shape_styleOUTSIDE GROOVED, STRAIGHT FACE
NSN5330-00-483-1051
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D-3250 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
•
OUTER EDGE THICKNESS: 0.239 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: OUTSIDE GROOVED, STRAIGHT FACE
•
OUTSIDE DIAMETER: 3.750 INCHES NOMINAL IN
•
FEATURES PROVIDED: WEARING EDGES BEVELED
•
MATERIAL THICKNESS: 0.359 INCHES NOMINAL IN
•
INSIDE DIAMETER: 3.250 INCHES NOMINAL IN
•
RING STYLE: CONCENTRIC
•
SURFACE TREATMENT: UNABLE TO DECODE
TECHNICAL CHARACTERISTICS
OUTER EDGE THICKNESS0.239 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEOUTSIDE GROOVED, STRAIGHT FACE
OUTSIDE DIAMETER3.750 INCHES NOMINAL IN
FEATURES PROVIDEDWEARING EDGES BEVELED
MATERIAL THICKNESS0.359 INCHES NOMINAL IN
INSIDE DIAMETER3.250 INCHES NOMINAL IN
RING STYLECONCENTRIC
SURFACE TREATMENTUNABLE TO DECODE
MATERIALUNABLE TO DECODE
SUBSTITUTES & CROSS-REFERENCES 1
1657099Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D-3250?
D-3250 is a PIN,STRAIGHT,HEADLESS.
What parts can replace D-3250?
There is 1 known substitute for D-3250: 1657099. Substitute compatibility should be verified for your specific system.
What is the NSN for D-3250?
D-3250 is cataloged in the U.S. Government catalog under NSN 5330-00-483-1051. 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.