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98HM1569-3 — BOLT,FLUID PASSAGE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

98HM1569-3: BOLT,FLUID PASSAGE.

The BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include material: STEEL, body_style: PLAIN, overall_length: 1.375 INCHES NOMINAL IN, hardness_rating: 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM, width_across_flats: 0.687 INCHES NOMINAL IN, concentric_hole_depth: 0.907 INCHES MINIMUM AND 0.967 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-601-5329, 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
98HM1569-3
NSN: 4730-00-601-5329
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL
body_stylePLAIN
overall_length1.375 INCHES NOMINAL IN
hardness_rating39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
width_across_flats0.687 INCHES NOMINAL IN
concentric_hole_depth0.907 INCHES MINIMUM AND 0.967 INCHES MAXIMUM IN
first_end_thread_class3A A
first_end_thread_length0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
wrenching_feature_styleHEXAGON
concentric_hole_diameter0.169 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
wrenching_feature_height0.188 INCHES NOMINAL IN
first_end_connection_typeTHREADED EXTERNAL TUBE
NSN4730-00-601-5329
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 98HM1569-3 · 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
•
FIRST END THREAD SERIES DESIGNATOR: UNF
•
WIDTH ACROSS FLATS: 0.687 INCHES NOMINAL IN
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 0.776 INCHES MINIMUM AND 0.786 INCHES MAXIMUM IN
•
BODY STYLE: PLAIN
•
FIRST END THREAD CLASS: 3A A
•
FIRST END STYLE DESIGNATOR: PLAIN
•
CONCENTRIC HOLE DEPTH: 0.907 INCHES MINIMUM AND 0.967 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FIRST END THREAD SERIES DESIGNATORUNF
WIDTH ACROSS FLATS0.687 INCHES NOMINAL IN
FIRST END THREAD DIRECTIONRIGHT-HAND
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER0.776 INCHES MINIMUM AND 0.786 INCHES MAXIMUM IN
BODY STYLEPLAIN
FIRST END THREAD CLASS3A A
FIRST END STYLE DESIGNATORPLAIN
CONCENTRIC HOLE DEPTH0.907 INCHES MINIMUM AND 0.967 INCHES MAXIMUM IN
WRENCHING FEATURE HEIGHT0.188 INCHES NOMINAL IN
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
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 98HM1569-3?
98HM1569-3 is a BOLT,FLUID PASSAGE.
What is the NSN for 98HM1569-3?
98HM1569-3 is cataloged in the U.S. Government catalog under NSN 4730-00-601-5329. 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.