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8261863 — PLUNGER,DETENT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8261863: PLUNGER,DETENT.

The PLUNGER,DETENT is a the manufacturer industrial component. Key specifications include length: 0.510 INCHES NOMINAL OVERALL IN, diameter: 0.155 INCHES NOMINAL OVERALL IN, material: STEEL COMP 303 OVERALL, material_document_and_classification: ASTM A581,TYPE 303,COND A ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A582,TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-435-2572, 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
8261863
NSN: 5340-00-435-2572
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
length0.510 INCHES NOMINAL OVERALL IN
diameter0.155 INCHES NOMINAL OVERALL IN
materialSTEEL COMP 303 OVERALL
material_document_and_classificationASTM A581,TYPE 303,COND A ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A582,TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-00-435-2572
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8261863 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
•
LENGTH: 0.510 INCHES NOMINAL OVERALL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A581,TYPE 303,COND A ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A582,TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE
•
DIAMETER: 0.155 INCHES NOMINAL OVERALL IN
•
MATERIAL: STEEL COMP 303 OVERALL
TECHNICAL CHARACTERISTICS
LENGTH0.510 INCHES NOMINAL OVERALL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A581,TYPE 303,COND A ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A582,TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE
DIAMETER0.155 INCHES NOMINAL OVERALL IN
MATERIALSTEEL COMP 303 OVERALL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 8261863?
8261863 is a PLUNGER,DETENT.
What is the NSN for 8261863?
8261863 is cataloged in the U.S. Government catalog under NSN 5340-00-435-2572. 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.