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156603 — UNMANNED WATERCRAFT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

156603: UNMANNED WATERCRAFT.

The UNMANNED WATERCRAFT is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: AUTONOMOUS UNDERWATER VEHICLE. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-167-1313, 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
156603
NSN: 5310-00-167-1313
NIINs: 001671313, 016130849
FSC: 5310 — Nuts and Washers
CAGE: 06848 — HONEYWELL INTERNATIONAL INC DIV AEROSPACE-SOUTH BEND (BENDIX DR) (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyAUTONOMOUS UNDERWATER VEHICLE
NSN5310-00-167-1313
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 156603 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 1.481 INCHES MINIMUM AND 1.502 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
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THREAD SERIES: UNS
•
HARDNESS RATING: 95.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
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THREAD PITCH DIAMETERS: +0.9536 TO 0.9590 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.000 INCHES IN
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND B GRADE
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.481 INCHES MINIMUM AND 1.502 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNS
HARDNESS RATING95.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS+0.9536 TO 0.9590 INCHES IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.000 INCHES IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND B GRADE
NUT HEIGHT0.500 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
FF-N-836Reference document
Same NSN cross-reference
Reference document — Identification reference
AN316-16RReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 156603?
156603 is a UNMANNED WATERCRAFT.
What parts can replace 156603?
There are 2 known substitutes for 156603: FF-N-836, AN316-16R. Substitute compatibility should be verified for your specific system.
What is the NSN for 156603?
156603 is cataloged in the U.S. Government catalog under NSN 5310-00-167-1313. 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.