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631621-0006 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

631621-0006: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include thread_class: 2A RIGHT EXTERNAL A, thread_length: 0.188 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN, style_designator: PROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD, thread_direction: RIGHT-HAND RIGHT EXTERNAL, shoulder_diameter: 0.250 INCHES NOMINAL IN, nominal_thread_size: 0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-908-1374, 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
631621-0006
NSN: 5340-00-908-1374
FSC: 5340 — Hardware, Commercial
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
thread_class2A RIGHT EXTERNAL A
thread_length0.188 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
style_designatorPROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD
thread_directionRIGHT-HAND RIGHT EXTERNAL
shoulder_diameter0.250 INCHES NOMINAL IN
nominal_thread_size0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
thread_quantity_per_inch40 RIGHT EXTERNAL
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL
NSN5340-00-908-1374
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 631621-0006 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
•
THREAD LENGTH: 0.188 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
STYLE DESIGNATOR: PROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
THREAD DIRECTION: RIGHT-HAND RIGHT EXTERNAL
•
NOMINAL THREAD SIZE: 0.112 INCHES RIGHT EXTERNAL IN
•
SHOULDER DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.188 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
THREAD LENGTH1.000 INCHES NOMINAL RIGHT EXTERNAL IN
STYLE DESIGNATORPROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
NOMINAL THREAD SIZE0.112 INCHES RIGHT EXTERNAL IN
NOMINAL THREAD SIZE0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
SHOULDER DIAMETER0.250 INCHES NOMINAL IN
THREAD CLASS2A RIGHT EXTERNAL A
THREAD CLASS2B LEFT INTERNAL (INCLUDES THRU THREAD)
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
631621-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 631621-0006?
631621-0006 is a STANDOFF,THREADED,SPACING.
What parts can replace 631621-0006?
There is 1 known substitute for 631621-0006: 631621-6. Substitute compatibility should be verified for your specific system.
What is the NSN for 631621-0006?
631621-0006 is cataloged in the U.S. Government catalog under NSN 5340-00-908-1374. This indicates validated use in U.S. government and defense supply chains.
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