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4164650-1 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4164650-1: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, material: STEEL COMP 303 OR STEEL COMP 303SE OVERALL, style_designator: INTERNALLY THREADED FULL LENGTH, surface_treatment: PASSIVATE OVERALL, width_across_flats: 0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN, cross-sectional_shape: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-243-6552, 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
4164650-1
NSN: 5340-01-243-6552
FSC: 5340 — Hardware, Commercial
CAGE: 05869 — RAYTHEON COMPANY DIV RMD STRATEGIC (USA)
SPECIFICATIONS
length0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
materialSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
style_designatorINTERNALLY THREADED FULL LENGTH
surface_treatmentPASSIVATE OVERALL
width_across_flats0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN
cross-sectional_shapeHEXAGON
material_document_and_classificationASTM A582, TYPE 303 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582, TYPE 303SE ASSN STD 2ND MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5340-01-243-6552
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4164650-1 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: 0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN
•
LENGTH: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTH
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582, TYPE 303 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582, TYPE 303SE ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 303 OR STEEL COMP 303SE OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN
LENGTH0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTH
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582, TYPE 303 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582, TYPE 303SE ASSN STD 2ND MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPEHEXAGON
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
NAS1831Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4164650-1?
4164650-1 is a STANDOFF,THREADED,SPACING.
What parts can replace 4164650-1?
There is 1 known substitute for 4164650-1: NAS1831. Substitute compatibility should be verified for your specific system.
What is the NSN for 4164650-1?
4164650-1 is cataloged in the U.S. Government catalog under NSN 5340-01-243-6552. 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.