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NS-5143 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

NS-5143: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN, diameter: 0.2140 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM IN, material: STEEL OVERALL, thread_class: 2B RIGHT INTERNAL, style_designator: PROJECTION ONE END, thread_direction: RIGHT-HAND RIGHT INTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-445-0790, 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
NS-5143
NSN: 5340-01-445-0790
FSC: 5340 — Hardware, Commercial
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
length0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
diameter0.2140 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM IN
materialSTEEL OVERALL
thread_class2B RIGHT INTERNAL
style_designatorPROJECTION ONE END
thread_directionRIGHT-HAND RIGHT INTERNAL
surface_treatmentTIN OVERALL
nominal_thread_size0.1120 INCHES RIGHT INTERNAL IN
cross-sectional_shapeROUND
right_projection_length0.0600 INCHES NOMINAL IN
thread_quantity_per_inch40 RIGHT INTERNAL
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) RIGHT INTERNAL
NSN5340-01-445-0790
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NS-5143 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: 0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-T-10727, TYPE I MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: PROJECTION ONE END
•
DIAMETER: 0.2140 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND RIGHT INTERNAL
•
NOMINAL THREAD SIZE: 0.1120 INCHES RIGHT INTERNAL IN
•
CROSS-SECTIONAL SHAPE: ROUND
•
SURFACE TREATMENT: TIN OVERALL
TECHNICAL CHARACTERISTICS
LENGTH0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-T-10727, TYPE I MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORPROJECTION ONE END
DIAMETER0.2140 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND RIGHT INTERNAL
NOMINAL THREAD SIZE0.1120 INCHES RIGHT INTERNAL IN
CROSS-SECTIONAL SHAPEROUND
SURFACE TREATMENTTIN OVERALL
THREAD CLASS2B RIGHT INTERNAL
THREAD QUANTITY PER INCH40 RIGHT INTERNAL
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 NS-5143?
NS-5143 is a STANDOFF,THREADED,SPACING.
What is the NSN for NS-5143?
NS-5143 is cataloged in the U.S. Government catalog under NSN 5340-01-445-0790. 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.