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20-2LM9 — INVERTED NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

20-2LM9: INVERTED NUT,TUBE COUPLING.

The INVERTED NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, seat_radius: 0.406 INCHES NOMINAL IN, thread_size: 0.812, thread_class: 2A A, overall_length: 1.062 INCHES NOMINAL IN, special_features: MATERIAL 316 STAINLESS STEEL; USED WITH COLLAR FOR CONNECTING TUBE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-539-9908, 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
20-2LM9
NSN: 4730-01-539-9908
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 07097 — GRACO HIGH PRESSURE EQUIPMENT INC. DBA HIGH PRESSURE EQUIPMENT COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
seat_radius0.406 INCHES NOMINAL IN
thread_size0.812
thread_class2A A
overall_length1.062 INCHES NOMINAL IN
special_featuresMATERIAL 316 STAINLESS STEEL; USED WITH COLLAR FOR CONNECTING TUBE
style_designatorINVERTED NUT, TUBE, FLARE
thread_directionRIGHT-HAND
width_across_flats0.875 INCHES NOMINAL IN
end_item_identificationHYDRAULIC CONTROL SYSTEM
smallest_inside_diameter0.562 INCHES NOMINAL IN
screw_thread_series_designatorUN
NSN4730-01-539-9908
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 20-2LM9 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.875 INCHES NOMINAL IN
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.562 INCHES NOMINAL IN
•
STYLE DESIGNATOR: INVERTED NUT, TUBE, FLARE
•
THREAD DIRECTION: RIGHT-HAND
•
SEAT RADIUS: 0.406 INCHES NOMINAL IN
•
THREAD SIZE: 0.812
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.562 INCHES NOMINAL IN
STYLE DESIGNATORINVERTED NUT, TUBE, FLARE
OVERALL LENGTH1.062 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
SEAT RADIUS0.406 INCHES NOMINAL IN
THREAD SIZE0.812
SPECIAL FEATURESMATERIAL 316 STAINLESS STEEL; USED WITH COLLAR FOR CONNECTING TUBE
SCREW THREAD SERIES DESIGNATORUN
PART NAME ASSIGNED BY CONTROLLING AGENCYGLAND
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 20-2LM9?
20-2LM9 is a INVERTED NUT,TUBE COUPLING.
What is the NSN for 20-2LM9?
20-2LM9 is cataloged in the U.S. Government catalog under NSN 4730-01-539-9908. 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.