NSN catalog · 90,857 partsCatalog › Hardware and Abrasives › FSC 5305 › 5305-01-285-7721
Cap Hexagon Head Screw P/N 5/8-11UNC-2A X 1-3/4 LG,STL,ZN
In stock — 2 on our U.S. shelfNSN 5305-01-285-7721 5305012857721 NIIN 012857721
SECO Parts has 2 in stock of NSN 5305-01-285-7721 — Cap Hexagon Head Screw — on our own shelf in Augusta, GA: a stocking supplier, not a broker.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- Certificate of Conformance on request
- PO, GPC & major cards
- $50 minimum order — smaller requests still get a quote
- 30-day returns · terms
- FLIS item name
- SCREW,CAP,HEXAGON HEAD
- Federal supply class
- FSC 5305 — Screws
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 2 |
| Total | 2 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5305-01-285-7721 012857721 5/8-11UNC-2A X 1-3/4 LG,STL,ZN M1222RN10C228GFNZE MIL-S-1222 M1222RX10C228GFNZE
Get a quote
Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Thread class
- 2A
- Thread direction
- Right-Hand
- Thread length
- 1.500 in (nominal)
- Fastener length
- 1.670–1.750 in
- Head height
- 0.378–0.403 in
- Width between flats
- 0.922–0.938 in
- Nominal thread diameter
- Inches 0.625
- Features provided
- Finished Head
- Thread quantity per inch
- 11
- Minimum tensile strength
- Pounds Per Square Inch 120000
- Hardness rating
- Overall Rockwell C Minimum 23.0 and Rockwell C Maximum 34.0
- Material
- Overall Steel
- Material document and classification
- Overall Assn STD Single Material Response SAE J429 GR 5
- Surface treatment
- Overall Zinc and Chromate
- Surface treatment document and classification
- Overall Assn STD Single Treatment Response Ast- B633 TY 2,CL-FE to ZN 13
- Thread series designator
- Unified National Coarse (UNC)
- Nondefinitive spec/std data
- Type 1 and Grade 5
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
5/8-11UNC-2A X 1-3/4 LG,STL,ZN M1222RN10C228GFNZE MIL-S-1222 M1222RX10C228GFNZE
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 2 on the shelf |
| Unit of issue | BX box |
| 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.
In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered
FAQ
What is NSN 5305-01-285-7721?
NSN 5305-01-285-7721 (5305012857721) — Cap Hexagon Head Screw: SECO Parts has 2 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for cap hexagon head screw in federal supply class 5305 (Screws).
Is NSN 5305-01-285-7721 available?
SECO Parts has 2 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5305-01-285-7721 cost?
SECO quotes NSN 5305-01-285-7721 on request, usually the same business day.
What part numbers cross-reference to NSN 5305-01-285-7721?
Part numbers that cross-reference this NSN include 5/8-11UNC-2A X 1-3/4 LG,STL,ZN, M1222RN10C228GFNZE, MIL-S-1222, M1222RX10C228GFNZE. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names SCREW,CAP,HEXAGON HEAD. Same name is not the same part: check the part numbers.