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123B146H01 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

123B146H01: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN, material: COPPER ALLOY OVERALL, thread_class: 2B LEFT INTERNAL (INCLUDES THRU THREAD), style_designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD, thread_direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD), end_item_identification: AN/TPS-43H AND AN/TPS/72(V) SERIES MOBILE GROUND LONG RANGE SEARCH RADAR SETS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-391-4233, 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
123B146H01
NSN: 5340-01-391-4233
FSC: 5340 — Hardware, Commercial
CAGE: 48306 — NORTHROP GRUMMAN SUPPORT SERVICES CORP (USA)
SPECIFICATIONS
length0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
materialCOPPER ALLOY OVERALL
thread_class2B LEFT INTERNAL (INCLUDES THRU THREAD)
style_designatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
end_item_identificationAN/TPS-43H AND AN/TPS/72(V) SERIES MOBILE GROUND LONG RANGE SEARCH RADAR SETS
right_projection_length1.620 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD)
right_projection_diameter0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
material_document_and_classificationQQ-C-502, TYPE ETP, TEMP H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5340-01-391-4233
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 123B146H01 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
•
LENGTH: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-502, TYPE ETP, TEMP H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND RIGHT EXTERNAL
•
THREAD CLASS: 2A RIGHT EXTERNAL A
TECHNICAL CHARACTERISTICS
LENGTH0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT EXTERNAL THREAD
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-502, TYPE ETP, TEMP H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD CLASS2A RIGHT EXTERNAL A
THREAD CLASS2B LEFT INTERNAL (INCLUDES THRU THREAD)
END ITEM IDENTIFICATIONAN/TPS-43H AND AN/TPS/72(V) SERIES MOBILE GROUND LONG RANGE SEARCH RADAR SETS
MATERIALCOPPER ALLOY OVERALL
RIGHT PROJECTION DIAMETER0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
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 123B146H01?
123B146H01 is a STANDOFF,THREADED,SPACING.
What is the NSN for 123B146H01?
123B146H01 is cataloged in the U.S. Government catalog under NSN 5340-01-391-4233. 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.