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MS9099-16 — LOCKNUT,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS9099-16: LOCKNUT,TUBE FITTING.

The LOCKNUT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, nut_style: TUBE FITTING LOCKNUT, thread_class: 3B, thread_series: UN, thread_direction: RIGHT-HAND, surface_treatment: ANODIZE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-160-1645, 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
MS9099-16
NSN: 4730-00-160-1645
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
nut_styleTUBE FITTING LOCKNUT
thread_class3B
thread_seriesUN
thread_directionRIGHT-HAND
surface_treatmentANODIZE OVERALL
width_across_flats1.614 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN
nominal_thread_size1.312 INCHES IN
packing_recess_depth0.049 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
packing_recess_diameter1.536 INCHES MINIMUM AND 1.546 INCHES MAXIMUM IN
thread_quantity_per_inch12
nominal_tube_outside_diameter1.000 INCHES IN
NSN4730-00-160-1645
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS9099-16 · 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: 1.614 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN
•
PACKING RECESS DIAMETER: 1.536 INCHES MINIMUM AND 1.546 INCHES MAXIMUM IN
•
THREAD SERIES: UN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.312 INCHES IN
•
SURFACE TREATMENT: ANODIZE OVERALL
•
NUT STYLE: TUBE FITTING LOCKNUT
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.614 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN
PACKING RECESS DIAMETER1.536 INCHES MINIMUM AND 1.546 INCHES MAXIMUM IN
THREAD SERIESUN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.312 INCHES IN
SURFACE TREATMENTANODIZE OVERALL
NUT STYLETUBE FITTING LOCKNUT
THREAD CLASS3B
THREAD QUANTITY PER INCH12
MATERIALALUMINUM OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
AS90991Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 MS9099-16?
MS9099-16 is a LOCKNUT,TUBE FITTING.
What parts can replace MS9099-16?
There is 1 known substitute for MS9099-16: AS90991. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9099-16?
MS9099-16 is cataloged in the U.S. Government catalog under NSN 4730-00-160-1645. 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.