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5280642-16 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5280642-16: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.625 INCHES NOMINAL IN, material: STEEL COMP 303 OVERALL, thread_class: 2B LEFT INTERNAL (INCLUDES THRU THREAD), thread_length: 0.375 INCHES NOMINAL RIGHT EXTERNAL IN, style_designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD, thread_direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD). This part is cataloged in the U.S.

Government catalog under NSN 5340-01-533-3375, 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
5280642-16
NSN: 5340-01-533-3375
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
length0.625 INCHES NOMINAL IN
materialSTEEL COMP 303 OVERALL
thread_class2B LEFT INTERNAL (INCLUDES THRU THREAD)
thread_length0.375 INCHES NOMINAL RIGHT EXTERNAL IN
style_designatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
surface_treatmentPASSIVATE OVERALL
width_across_flats0.312 INCHES NOMINAL IN
nominal_thread_size0.164 INCHES RIGHT EXTERNAL IN
cross-sectional_shapeHEXAGON
right_projection_length0.375 INCHES NOMINAL IN
thread_quantity_per_inch32 LEFT INTERNAL (INCLUDES THRU THREAD)
NSN5340-01-533-3375
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5280642-16 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
•
WIDTH ACROSS FLATS: 0.312 INCHES NOMINAL IN
•
LENGTH: 0.625 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35, TYPE IV FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.375 INCHES NOMINAL RIGHT EXTERNAL IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
THREAD DIRECTION: RIGHT-HAND RIGHT EXTERNAL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.312 INCHES NOMINAL IN
LENGTH0.625 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35, TYPE IV FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.375 INCHES NOMINAL RIGHT EXTERNAL IN
THREAD LENGTH0.438 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT EXTERNAL THREAD
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
NOMINAL THREAD SIZE0.164 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
NOMINAL THREAD SIZE0.164 INCHES RIGHT EXTERNAL 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
1564-M09-F09-832Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 5280642-16?
5280642-16 is a STANDOFF,THREADED,SPACING.
What parts can replace 5280642-16?
There is 1 known substitute for 5280642-16: 1564-M09-F09-832. Substitute compatibility should be verified for your specific system.
What is the NSN for 5280642-16?
5280642-16 is cataloged in the U.S. Government catalog under NSN 5340-01-533-3375. 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.