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5266667 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5266667: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 3.700 INCHES MINIMUM AND 3.800 INCHES MAXIMUM IN, diameter: 0.250 INCHES NOMINAL IN, material: PLASTIC OVERALL, thread_class: 2B RIGHT INTERNAL, thread_length: 0.250 INCHES MINIMUM RIGHT INTERNAL IN, style_designator: LEFT INTERNAL AND RIGHT INTERNAL THREADS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-400-2841, 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
5266667
NSN: 5340-01-400-2841
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
length3.700 INCHES MINIMUM AND 3.800 INCHES MAXIMUM IN
diameter0.250 INCHES NOMINAL IN
materialPLASTIC OVERALL
thread_class2B RIGHT INTERNAL
thread_length0.250 INCHES MINIMUM RIGHT INTERNAL IN
style_designatorLEFT INTERNAL AND RIGHT INTERNAL THREADS
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
nominal_thread_size0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
cross-sectional_shapeROUND
thread_quantity_per_inch40 LEFT INTERNAL (INCLUDES THRU THREAD)
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) RIGHT INTERNAL
material_document_and_classificationL-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5340-01-400-2841
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5266667 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: 3.700 INCHES MINIMUM AND 3.800 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.250 INCHES MINIMUM RIGHT INTERNAL IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT INTERNAL THREADS
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.250 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
TECHNICAL CHARACTERISTICS
LENGTH3.700 INCHES MINIMUM AND 3.800 INCHES MAXIMUM IN
THREAD LENGTH0.250 INCHES MINIMUM RIGHT INTERNAL IN
THREAD LENGTH0.250 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT INTERNAL THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.250 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD DIRECTIONRIGHT-HAND RIGHT INTERNAL
NOMINAL THREAD SIZE0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
NOMINAL THREAD SIZE0.112 INCHES RIGHT INTERNAL IN
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 1
8183-N-0440-0Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5266667?
5266667 is a STANDOFF,THREADED,SPACING.
What parts can replace 5266667?
There is 1 known substitute for 5266667: 8183-N-0440-0. Substitute compatibility should be verified for your specific system.
What is the NSN for 5266667?
5266667 is cataloged in the U.S. Government catalog under NSN 5340-01-400-2841. 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.