Setscrew P/N MS51955-45

Specifications

Nominal thread diameter

Inches 0.375

Thread direction

Right-Hand

Thread length

3.000 in maximum

Head height

0.270–0.293 in

Width between flats

0.362–0.375 in

Fastener length

2.906–3.000 in

Thread series designator

Unified National Coarse (UNC)

Material document and classification

Overall Fed STD All Material Responses 66

Surface treatment

Overall Cadmium and Chromate

Surface treatment document and classification

Overall Fed Spec All Treatment Responses QQ--416 Tye 2 Class 3

Thread quantity per inch

16

Hardness rating

Overall Rockwell C Minimum 30.0 and Rockwell C Maximum 37.0

Thread class

2A

Material

Overall Steel Comp 1010 or Steel Comp 1011 or Steel Comp 1013 or Steel Comp 1015 or Steel Comp 1016 or Steel Comp 1017 or Steel Comp 1018 or Steel Comp 1019 or Steel Comp 1020 or Steel Comp 1022 or Steel Comp 1137 or Steel Comp 1035 or Steel Comp 1536 or Steel Comp 1037 or Steel Comp 1038 or Steel Comp 1039 or Steel Comp 1040 or Steel Comp 1541 or Steel Comp 1042 or Steel Comp 1043 or Steel Comp 1044 or Steel Comp 1045 or Steel Comp 1139 or Steel Comp 1140 or Steel Comp 1141 or Steel Comp 1144 or Steel Comp 1145

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

Cross-reference part numbers

MS51955-45

Also referenced as

FFS210

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual.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	J Not stocked, centrally procured — the government does not stock this item; it is procured only when a requisition arrives. SECO has 6 on the shelf
Unit of issue	EA each
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 5305-00-054-9278?
NSN 5305-00-054-9278 (5305000549278) — Setscrew: SECO Parts has 6 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for setscrew in federal supply class 5305 (Screws).

Is NSN 5305-00-054-9278 available?
SECO Parts has 6 in stock in Augusta, GA — order or request a quote below.

How much does NSN 5305-00-054-9278 cost?
The government catalog (FEDLOG) lists NSN 5305-00-054-9278 at $199.27 per each. That is a public reference, not SECO's price: SECO quotes each request, usually the same business day, and surplus parts often quote below or above it.

What part numbers cross-reference to NSN 5305-00-054-9278?
Part numbers that cross-reference this NSN include MS51955-45. It is also referenced by older, superseded or advisory numbers: FFS210. SECO can quote against any of them.