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5187334 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5187334: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.195 INCHES MINIMUM AND 1.205 INCHES MAXIMUM IN, material: STEEL COMP 4130 OVERALL, thread_class: 2B LEFT INTERNAL (INCLUDES THRU THREAD), thread_length: 0.135 INCHES NOMINAL RIGHT EXTERNAL IN, groove_diameter: 0.190 INCHES NOMINAL IN, thread_direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD). This part is cataloged in the U.S.

Government catalog under NSN 5340-01-391-1638, 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
5187334
NSN: 5340-01-391-1638
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
length1.195 INCHES MINIMUM AND 1.205 INCHES MAXIMUM IN
materialSTEEL COMP 4130 OVERALL
thread_class2B LEFT INTERNAL (INCLUDES THRU THREAD)
thread_length0.135 INCHES NOMINAL RIGHT EXTERNAL IN
groove_diameter0.190 INCHES NOMINAL IN
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
surface_treatmentTIN OVERALL
width_across_flats0.312 INCHES NOMINAL IN
nominal_thread_size0.164 INCHES RIGHT EXTERNAL IN
smaller_groove_width0.030 INCHES MAXIMUM IN
cross-sectional_shapeHEXAGON
smaller_groove_diameter0.117 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
NSN5340-01-391-1638
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5187334 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: 0.117 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.312 INCHES NOMINAL IN
•
LENGTH: 1.195 INCHES MINIMUM AND 1.205 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-T-10727 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
GROOVE DIAMETER: 0.190 INCHES NOMINAL IN
•
THREAD LENGTH: 0.250 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
DISTANCE FROM END TO GROOVE: 0.200 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SMALLER GROOVE DIAMETER0.117 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.312 INCHES NOMINAL IN
LENGTH1.195 INCHES MINIMUM AND 1.205 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-T-10727 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
GROOVE DIAMETER0.190 INCHES NOMINAL IN
THREAD LENGTH0.250 INCHES MINIMUM LEFT INTERNAL (INCLUDES THRU THREAD) IN
THREAD LENGTH0.135 INCHES NOMINAL RIGHT EXTERNAL IN
DISTANCE FROM END TO GROOVE0.200 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 COND F AND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
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
5340PL0987980Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 5187334?
5187334 is a STANDOFF,THREADED,SPACING.
What parts can replace 5187334?
There is 1 known substitute for 5187334: 5340PL0987980. Substitute compatibility should be verified for your specific system.
What is the NSN for 5187334?
5187334 is cataloged in the U.S. Government catalog under NSN 5340-01-391-1638. 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.