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10163939 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

10163939: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.334 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN, material: STEEL COMP 303 OR STEEL COMP 303SE OVERALL, groove_width: 0.277 INCHES NOMINAL IN, thread_length: 0.250 INCHES NOMINAL RIGHT EXTERNAL IN, groove_diameter: 0.180 INCHES NOMINAL IN, style_designator: GROOVED W/ LEFT INTERNAL AND RIGHT EXTERNAL THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-275-3495, 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
10163939
NSN: 5340-01-275-3495
FSC: 5340 — Hardware, Commercial
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
length0.334 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
materialSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
groove_width0.277 INCHES NOMINAL IN
thread_length0.250 INCHES NOMINAL RIGHT EXTERNAL IN
groove_diameter0.180 INCHES NOMINAL IN
style_designatorGROOVED W/ LEFT INTERNAL AND RIGHT EXTERNAL THREAD
surface_treatmentPASSIVATE OVERALL
width_across_flats0.250 INCHES NOMINAL IN
smaller_groove_width0.060 INCHES NOMINAL IN
cross-sectional_shapeHEXAGON
smaller_groove_diameter0.132 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
distance_from_end_to_groove0.060 INCHES NOMINAL IN
NSN5340-01-275-3495
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 10163939 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
•
SMALLER GROOVE DIAMETER: 0.132 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
LENGTH: 0.334 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
GROOVE DIAMETER: 0.180 INCHES NOMINAL IN
•
THREAD LENGTH: 0.250 INCHES NOMINAL RIGHT EXTERNAL IN
•
DISTANCE FROM END TO GROOVE: 0.060 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SMALLER GROOVE DIAMETER0.132 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
LENGTH0.334 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
GROOVE DIAMETER0.180 INCHES NOMINAL IN
THREAD LENGTH0.250 INCHES NOMINAL RIGHT EXTERNAL IN
THREAD LENGTH0.250 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN
DISTANCE FROM END TO GROOVE0.060 INCHES NOMINAL IN
STYLE DESIGNATORGROOVED W/ LEFT INTERNAL AND RIGHT EXTERNAL THREAD
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582, TYPE 303 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582, TYPE 303SE ASSN STD 2ND MATERIAL RESPONSE 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10163939?
10163939 is a STANDOFF,THREADED,SPACING.
What is the NSN for 10163939?
10163939 is cataloged in the U.S. Government catalog under NSN 5340-01-275-3495. 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.