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7899939-011 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7899939-011: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.900 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, thread_class: 2B LEFT INTERNAL (INCLUDES THRU THREAD), hole_diameter: 0.375 INCHES NOMINAL IN, special_features: CONSISTS OF STANDOFF AND SCREW THREAD INSERT, style_designator: PROJECTION ONE END LEFT INTERNAL THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-569-9761, 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
7899939-011
NSN: 5340-01-569-9761
FSC: 5340 — Hardware, Commercial
CAGE: 13160 — GENERAL DYNAMICS LAND SYSTEMS INC. (USA)
SPECIFICATIONS
length0.900 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
thread_class2B LEFT INTERNAL (INCLUDES THRU THREAD)
hole_diameter0.375 INCHES NOMINAL IN
special_featuresCONSISTS OF STANDOFF AND SCREW THREAD INSERT
style_designatorPROJECTION ONE END LEFT INTERNAL THREAD
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
surface_treatmentPASSIVATE OVERALL
width_across_flats1.000 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
cross-sectional_shapeHEXAGON
right_projection_length0.500 INCHES NOMINAL IN
NSN5340-01-569-9761
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7899939-011 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: 1.000 INCHES NOMINAL IN
•
LENGTH: 0.900 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,T7 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: PROJECTION ONE END LEFT INTERNAL THREAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A-528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND RIGHT EXTERNAL
•
NOMINAL THREAD SIZE: 0.375 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.000 INCHES NOMINAL IN
LENGTH0.900 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,T7 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORPROJECTION ONE END LEFT INTERNAL THREAD
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A-528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
NOMINAL THREAD SIZE0.375 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
NOMINAL THREAD SIZE0.375 INCHES RIGHT EXTERNAL IN
CROSS-SECTIONAL SHAPEHEXAGON
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7899939-011?
7899939-011 is a STANDOFF,THREADED,SPACING.
What is the NSN for 7899939-011?
7899939-011 is cataloged in the U.S. Government catalog under NSN 5340-01-569-9761. This indicates validated use in U.S. government and defense supply chains.
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