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3921C39H01 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3921C39H01: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.375 INCHES NOMINAL IN, diameter: 0.620 INCHES NOMINAL IN, material: STEEL COMP 316 OVERALL, thread_class: 2A RIGHT EXTERNAL A, thread_length: 0.620 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN, groove_diameter: 0.248 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-531-0604, 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
3921C39H01
NSN: 5340-01-531-0604
FSC: 5340 — Hardware, Commercial
CAGE: 31442 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
length1.375 INCHES NOMINAL IN
diameter0.620 INCHES NOMINAL IN
materialSTEEL COMP 316 OVERALL
thread_class2A RIGHT EXTERNAL A
thread_length0.620 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
groove_diameter0.248 INCHES NOMINAL IN
special_featuresSPACER, STOP NOSE CONE ASSEMBLY
style_designatorGROOVED W/ LEFT INTERNAL AND RIGHT EXTERNAL THREAD
nominal_thread_size0.250 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
cross-sectional_shapeROUND
end_item_identificationNEXT ASSY 1091E56, USED ON AN/AQS-14(XN-2)
smaller_groove_diameter0.248 INCHES NOMINAL IN
NSN5340-01-531-0604
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3921C39H01 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: 0.248 INCHES NOMINAL IN
•
LENGTH: 1.375 INCHES NOMINAL IN
•
GROOVE DIAMETER: 0.248 INCHES NOMINAL IN
•
THREAD LENGTH: 0.620 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
DISTANCE FROM END TO GROOVE: 0.180 INCHES NOMINAL IN
•
STYLE DESIGNATOR: GROOVED W/ LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
DIAMETER: 0.620 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.250 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
TECHNICAL CHARACTERISTICS
SMALLER GROOVE DIAMETER0.248 INCHES NOMINAL IN
LENGTH1.375 INCHES NOMINAL IN
GROOVE DIAMETER0.248 INCHES NOMINAL IN
THREAD LENGTH0.620 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
DISTANCE FROM END TO GROOVE0.180 INCHES NOMINAL IN
STYLE DESIGNATORGROOVED W/ LEFT INTERNAL AND RIGHT EXTERNAL THREAD
DIAMETER0.620 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.250 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
NOMINAL THREAD SIZE0.313 INCHES RIGHT EXTERNAL IN
CROSS-SECTIONAL SHAPEROUND
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 3921C39H01?
3921C39H01 is a STANDOFF,THREADED,SPACING.
What is the NSN for 3921C39H01?
3921C39H01 is cataloged in the U.S. Government catalog under NSN 5340-01-531-0604. This indicates validated use in U.S. government and defense supply chains.
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