Self-Locking Hexagon Nut P/N MS21045-4

Specifications

Thread quantity per inch

28

Width across flats

0.430–0.439 in

Thread direction

Right-Hand

Material

Overall Steel

Temp rating

Fahrenheit Nominal 450.0

Surface treatment document and classification

Overall Fed Spec Single Treatment Response QQ--416,TY 2,CL 3

Bearing surface type

Chamfered or Washer Faced

Thread series

Unified National Joint Fine (Unjf)

Bearing surface finish

Microinches 125.0

Nominal thread size

Inches 0.250

Locking feature

Prevailing Torque All Metal Design

Surface treatment

Overall Cadmium

Thread class

3B

Countersink angle

Nut Degrees Nominal 88.0

Nut height

0.240–0.328 in

Lubrication

Soluble Lubricant

From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.

Cross-reference part numbers

MS21045-4 H55-4CW F180-048 858956-00 27FH-428 YE3180 AN363-428 13207E5500FN42

Also referenced as

JL10S428B 6782262-428

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.

Shown for identification only. SECO can quote against any of these numbers.

Logistics data

Source of supply	SMS DLA Land and Maritime, Columbus, Ohio
Acquisition advice code	Z Insurance/numeric stockage objective — held by the government as insurance stock for contingencies, not for routine issue. SECO has 63 on the shelf
Unit of issue	HD hundred
Demilitarization code	A Demilitarization not required — non-munitions-list item
Controlled inventory code	U Unclassified
Hazardous material indicator	N No hazardous material

Source: public FLIS/PUB LOG cataloging data.

Why buy from SECO

These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.

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FAQ

What is NSN 5310-00-061-7325?
NSN 5310-00-061-7325 (5310000617325) — Self-Locking Hexagon Nut: SECO Parts has 63 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for self-locking hexagon nut in federal supply class 5310 (Nuts and Washers).

Is NSN 5310-00-061-7325 available?
SECO Parts has 63 in stock in Augusta, GA — order or request a quote below.

How much does NSN 5310-00-061-7325 cost?
SECO quotes NSN 5310-00-061-7325 on request, usually the same business day.

What part numbers cross-reference to NSN 5310-00-061-7325?
Part numbers that cross-reference this NSN include MS21045-4, H55-4CW, F180-048, 858956-00, 27FH-428, YE3180, AN363-428, 13207E5500FN42. It is also referenced by older, superseded or advisory numbers: JL10S428B, 6782262-428. SECO can quote against any of them.